JPH03250823A - Cordless telephone set - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

The explanation will be given in the following order. A. Field of industrial application B. Overview of the invention C. Prior art D. Problem to be solved by the invention E. Means for solving the problem (Fig. 1) F. Effect G. Example G, first example (first example) (Figures to Figures 7) G2 Second Embodiment (Figure 8) G3 Other Embodiments H Effects of the Invention A Industrial Application Field This invention relates to a cordless telephone. Summary of the Invention The second invention is a cordless telephone that, when adding a handset, uses the call code given to the cordless telephone as a PIN code, thereby accidentally giving the call code to the handset of another cordless telephone. This is to prevent it from being written. C. Prior Art] - A dress telephone basically consists of a base unit (base unit) connected to a telephone line and a handset (slave unit) connected to this base unit by radio waves, but one There is one that allows a second handset to be added to the base unit. By the way, the handset and base unit are given a unique system identification code (call code) to prevent them from being connected to other cordless telephones. In this case, this identification code is 25 bits, of which the higher bits are assigned different values for each manufacturer, and the lower bits are assigned different values for each set of cordless telephones in each manufacturer. Therefore, for example, when making a call, (1) transmits a call request signal and a system identification code from the handset to the base unit; (2) The base unit compares the sent system identification code with its own system identification code, and if the two codes match, the base unit then processes the call in accordance with the call request signal. ■ If there is no match, ignore the call request signal. It uses a system identification code, such as Therefore, when adding a handset, it is necessary to register a system identification code in the added handset. One way to register the system identification code in an additional handset is to connect the additional handset and the base unit via radio waves. That is, (1) Enter the password 10 into the additional handset. ■ Enter the PIN ID into the base unit. ■ Enter the system identification code registration command into the handset. Then, the PIN number 10 is used in place of the system identification code when making the above-mentioned call, and a radio channel is opened between the additional handset and the base unit. An identification code is sent and this is registered on the additional handset. D. Problem to be Solved by the Invention However, in order to register the system identification code in the additional handset as described above, a numeric keypad for inputting the password 10 is required in the base unit. In this case, if the base unit also has a dial key and a handset, and it is possible to make a telephone call from the base unit, the dial key can be used as a numeric keypad for inputting the password ID. However, if it is not possible to make a telephone call from the base unit, the password ID cannot be entered, and therefore it is not possible to add more handsets. In addition, the user must input a personal identification number ID into the additional handset and the base unit, which complicates the operation. Especially for those who lack this kind of knowledge, this can cause trouble. This invention attempts to solve these problems. E. Means for Solving the Problem If you look into cordless telephones now, you will find that the system identification code given to each cordless telephone differs from manufacturer to manufacturer and from one device to another, as mentioned above. This system identification code is required by the Radio Law to be displayed on the outside or inside of the base unit. This invention focuses on such points. That is, in the present invention, a user presses a predetermined key on the additional handset and inputs a part of the system identification code displayed on the base unit from the dial keys as a password ID. Then, (1) the additional handset transmits a system identification code write request signal and the dialed password number 10 to the base unit. ■ At this time, if you press the specified key on the base unit, the PIN code I sent from the additional handset will be sent to you.
D and the corresponding part of its own system identification code, and when the two match, the base unit transmits the system identification code to the handset. ■ The handset registers the transmitted system identification code in its memory. This is how it was done. F Function Regardless of whether or not there is a dial key on the base unit, the system identification code can be registered in the additional handset with a simple key operation. G Embodiment G, First Embodiment FIG. 1 shows the case of a low-power type cordless telephone, in which (1) is the handset, (2) is the base unit, and (3) is the telephone line. In the handset (1), (110) is its transmitting circuit, (120) is its receiving circuit, and the transmitting circuit (
110) is the audio signal St and the command signal CMND (
The receiving circuit (120) receives the down channel FM signal Sd and demodulates the audio signal Sr and command signal CMND. It is. Furthermore, in the handset (1), (131) is a dial key, (132) is a talk key, and this talk key (132) is a non-lock type button switch, and each time this key (132) is pressed, the handset (
1) alternately switches between standby mode and talk mode. When the hand cent (1) is in standby mode, it is waiting for a call, and
Base unit (2) that monitors reception of downlink channels
It waits for a connection request from the base unit (2), and performs continuous reception and transmission with the base unit (2) when in talk mode. In addition, (133) to (137) are auxiliary keys such as program keys configured with non-locking type bush switches, (139) is a speaker for a ringer, etc.
(140) is a microcomputer for system control. Then, in the microcomputer (140), the transmitting circuit (11
0) is formed, and the command signal CMND taken out from the receiving circuit (120) is determined. In addition, a microcontroller (1
40), a transmitting circuit (110) and a receiving circuit (
Control signals TCTL and RCTL for permitting/prohibiting transmission/reception of 120) and specifying a channel are also formed. The microcomputer (140) is also provided with a routine (300) as shown in the flowchart shown in FIG. 6, for example. In addition, (141) is a non-volatile memory, such as a ROM that can be electrically erased and written.
For 1), as mentioned above, use this cordless telephone,
A 25-bit system identification code (call code) SYID is stored to distinguish it from other cordless telephones. Furthermore, when additional handsets are installed, in order to identify each handset from one another, a one-digit handset number is assigned to handset (1), and the handset number is stored in memory as a 4-bit handset identification code H5ID. (141). However, at the time of purchase of the handset (1), none of these identification codes (5YIDX)ISID are stored. On the other hand, the base unit (2) has a transmitting circuit (210) and a receiving circuit (220) similar to the transmitting circuit (110) and receiving circuit (120) in the handset (1), and the receiving circuit (220) includes: When in standby mode, it is waiting for an incoming call from the telephone line (3), and
It monitors reception of the upstream channel and waits for a connection request from the handset (1), and when in talk mode, performs continuous reception and transmission with the handset (1). Furthermore, in the base unit (2), (23'3)
is a switch for registering an identification code, and (240) is a microcomputer for system control. It also manages operations. In addition,
The microcomputer (240) is also provided with a routine (400) of the flowchart shown in FIG. 71, for example. Also, (241) is memory;
The system identification code 5YID is written in the handset (1) to be used with this base unit (2) at the time of shipment from the manufacturer.
The slave unit identification code) IsID is also written. Furthermore, (261) is a 4-wire/2-wire conversion circuit, (262)
(263) is a dial tone signal (DTMF signal) forming circuit; (264) is a ring tone signal detection circuit. Note that an identification code 5YID is displayed on a portion of the base unit (2) that can be seen by the user. FIG. 2 shows an example of the signal format of the command signal CMND, which has a 24-bit bit synchronization signal BSYN at the beginning, followed by a 16-bit frame synchronization signal FSYN. In this case, these signals BSYN, FSYN are, for example, BSYN=”1
01010・・・・・・・・・10″FSYN=
"1100010011010110"...FSYN for upstream channel = "1001001100110110'"
. . . has a specific bit pattern indicated for the downstream channel. Furthermore, the command signal CMND follows the signal FSYN with a 25-bit system identification code (call code) SYI.
D, a 12-bit error correction code ECC for this code 5YID, and a 3-bit dummy bit DBIT, and a 5-byte control code CTRL following the dummy bit DBTT. In this case, in the control code CTRL, the first byte CTLI is a code indicating the control content of the handset (1) and the base unit (2), and the second byte CTL2 to the fifth pie)
CTL5 is a parameter or data related to the first byte CTLI. For example, when the base unit (2) notifies the handset (1) of the channel number of a call channel, CTLI: A code indicating that it is a call channel notification CTL2: Identification code of the other party's handset (1) HSID CTL3: Channel number of call channel CTL4
, CTL5: Served as a dummy. Then, either the handset (1) or the base unit (
2) receives this command signal CMND, the microcomputer (140) or (240) stores the identification code 5YID (and HSID) included in the signal CMND in its own memory (141) or (241).
) Identification code 5YID (and ll5
ID), and only when they match, the command signal CMND is made valid, and when they do not match, it is made invalid.

[On standby]

During standby, the handset (1) is on standby for a call, and also monitors reception of a downlink control channel and waits for a connection request from the base unit (2). Further, the base unit (2) waits for an incoming call from the telephone line (3), and also monitors reception of the upstream display channel and waits for a connection request from the handset (1).

[Call] A call from the handset (1) to an outside line is performed, for example, as shown in the connection sequence shown in FIG. That is, in the figure, vertical solid lines indicate channels used by the handset (1) and base unit (2), C is a control channel, and ■ is a speech channel. In addition, when there is no hatching on the solid line indicating this channel, the channel is in a receiving state in standby mode, and when there is hatching, it indicates that transmission is also permitted in talk mode or the like. However, for convenience of drawing, this time axis is not linear. When the handset (1) is in standby mode, when the talk key (132) is pressed, this is detected by the microcomputer (140), and the microcomputer (140) supplies a transmission control signal TCTL to the transmitting circuit (110). , thereby transmitting circuit (110) and receiving circuit (12
0) is allowed to transmit and receive on the control channel and is set to talk mode, and the microcontroller (140)
, a command signal CMNO in which the control code CTRL indicates a call request and an identification code HSID is formed, and the command signal CMND of this call request is sent to the transmitting circuit (1
10). Therefore, in the transmitting circuit (110), the signal CMN
D is the FM signal (FSK signal) of the uplink control channel S
u and this signal Su is transmitted to the base unit (2) through the antenna (100). Then, in the base unit (2), the signal (
The radio wave) Su is received by the antenna (200), and at this time, the base unit (2) is in the reception monitoring state of the uplink control channel, so the command signal CMND is demodulated from the FM signal Su in the receiving circuit (220).
This signal CMND is supplied to the microcomputer (240), and it is checked whether the identification code 5YII) included in the signal CMNO matches the identification code 5YID of the memory (241). And in this case, along with matching, the handset (
1), the transmission control signal TCTL is supplied from the microcomputer (240) to the transmitting circuit (210), which allows the transmitting circuit (210) to transmit on the downlink control channel. (24
0), the control code CTRL is a command signal C? indicating permission to make a call, identification code HSID, and channel number of the communication channel. IND is formed, and a command signal CMND in response to the call is supplied to the transmitting circuit (210). Therefore, the transmitting circuit (210) of the base unit (2)
), the signal CMND is F of the downlink control channel.
The M signal signal S trace is converted, and this signal Sd is transmitted to the antenna (20
0) to the handset (1). In the handset (1), when the base unit (2) sends an FM signal S trace through the downlink control channel, it is received by the antenna (100) and supplied to the receiving circuit (120), where it is received. A command signal CMND is taken out from the circuit (120) and supplied to the microcomputer (140). Then, since the identification code 5YIS, 1 (SID) included in the command signal CMNO matches the identification code 5YrS, HSID stored in the memory (141), the transmitting circuit (110) and the receiving circuit (120)
Control signal TCTL. RCTL causes the communication channel to be switched to the channel number indicated by the control signal CTRL in the received command signal CMND. In addition, in the base unit (2), when the communication channel is instructed to the hand center (IA) by the command signal CMND, the transmission control signal TC is sent from the microcomputer (240) to the transmission circuit (210) and the reception circuit (220).
The transmission circuit (2) is supplied with the signal and the reception control signal RCTL.
10) and the receiving circuit (220) are microcomputer (240)
The call channel is switched to the channel number specified by the handset (1). Therefore, the handset (1) and the base unit (2)
), a communication channel has been opened between them. At this time, if there is a second or subsequent handset (1), the second or subsequent handset (1) will also receive the FM signal S trace transmitted from the base unit (2). However, since the sent identification code HSID does not match its own, it remains in standby mode on the downlink control channel. Further, in the base unit (2), the switch circuit (262) is in an off-hook state, and the transmitting circuit (21
0) and the receiving circuit (220) are connected to the line (3) through a conversion circuit (261) and a switch circuit (262). The handset (1) is thus connected to the line (3) through the speech channel and the base unit (2).

【Dial】

Subsequently, when the caller inputs the telephone number of the other party using the dial key (131) of the handset (1), a command signal CMND indicating that the control code CTRL is to send a telephone number and the telephone number is generated. , this signal CMND is converted into an FM signal S u of the communication channel and transmitted. Therefore, in the base unit (2), the command signal CMND is obtained from the receiving circuit (220), but since the control code CTRL of this signal CMND is a telephone number and indicates the telephone number, the forming circuit ( 263) is controlled by the microcomputer (240) according to the telephone number to form a dial tone signal corresponding to the telephone number sent from the handset (1), and this signal is transmitted through the conversion circuit (261) and then to the switch. It is sent out to the telephone line (3) through the circuit (263).

[Call]

When the other party answers the phone, the voice signal Sr from the other party is
Line (3) → Switch circuit (262) → Conversion circuit (26
The signal is supplied to the transmitting circuit (210) through the signal line 1). Therefore, the signal Sr is converted into a downstream FM signal Sd, and this signal Sd is transmitted from the antenna (200). Then, this signal Sd is received by the handset (1), a voice signal Sr is taken out from the receiving circuit (120), and this signal Sr is supplied to the receiver (121). Also, when transmitting a call, the audio signal S from the transmitter (111)
t is supplied to the transmitting circuit (110) and the upstream FM signal S
This signal Su is transmitted from the antenna (100) to the base unit (2). Then, the signal Su is received by the base unit (2) and the signal St is taken out from the receiving circuit (220), and this signal St is supplied to the line (3) through the conversion circuit (261) and the switch circuit (262). and is sent to the other party's phone. Therefore, the handset (1) and the base unit (2)
), a communication channel is opened between the caller and the handset (1), and from then on, a communication can be made between the other party and the handset (1).

[General incoming call]

A general incoming call from an outside line to the handset (1) is performed, for example, as shown in the connection sequence shown in FIG. That is, when there is an incoming call through the line (3), the ring tone signal is detected by the detection circuit (264), and this detection signal is supplied to the microcomputer (240). Then, a command signal CMND is formed in which the control code CTRL indicates an incoming call, the identification code 5HID of the hand sent (1), and the channel number of the communication channel. ) is transmitted through the downstream control channel. Then, the handset (1) checks the transmitted identification codes 5YID and H5ID, and in this case, since these match your own, the FM
The transmission of the signal Su is permitted, and the control code CT
A command signal CMND is formed indicating that the RL is an incoming call response and the handset identification code HSID, and this signal CMND is transmitted to the base unit (2) via the upstream control channel. When the base unit (2) receives the command signal CMND in response to the incoming call, the channel is switched to the communication channel instructed to the handset (1). Further, in the hand cent (1), when a command signal CMND indicating an incoming call response is transmitted, the channel is subsequently switched to the communication channel instructed by the base unit (2). In addition, if there is a handset (1) after the second white, a command signal CMN indicating an incoming call from the base unit (2) is sent.
D is received, but since the identification codes HSID do not match, the command signal CMND of the call request from the base unit (2) is ignored. Then, in the base unit (2), a command signal CMNO indicating that the control code CTRL will sound a ringer is subsequently generated, and this signal CMND is transmitted through the communication channel. In the handset, when the ringer command signal CMNO is received, the oscillation circuit (138) is controlled by the microcomputer (140) to form a ringer signal, and this signal is supplied to the speaker (139) and output from the speaker. (139) rings a bell to indicate an incoming call. Then, in the handset (1), when the talk key (132) is pressed, the control code CTRL indicates that it is a called response, the identification code H5ID, and the key (132) is pressed.
A called response command signal CMND indicating that one of the keys (137) to (137) has been pressed and that the pressed key is the talk key (132) is formed, and this signal CMN
D is transmitted, and the oscillation circuit (138) of the handset (1) is turned off to turn off the ringer. Then, a command signal C from this handset (1)
When the MND is received at the base unit (2),
The switch circuit (22) is controlled by the microcomputer (240) and the switch circuit (262) of the base unit (2)
is in an off-footer state, and the base unit (2) is connected to the line (3). Therefore, the handset (1) and the base unit (2)
), a communication channel is opened between the caller and the handset (1), and from then on, a communication can be made between the other party and the handset (1).

[End of story]

When the call ends, for example, as shown in FIG. 5, if the talk key (132) of the handset (1) is pressed, the control code CTRL will indicate that the call is over and the identification code H3.
A command signal CMNO indicating the ID is generated, and a command signal CMND for ending the call is transmitted to the base unit (2) via the communication channel FMfg number su. Then, the command signal CMND is taken out from the receiving circuit (220) of the base unit (2), and the microcomputer (240) determines that the call is over. As a result, the transmission of the transmitting circuit (210) of the base unit (2) is prohibited by the control signal TCTL, and the receiving circuit (220) is placed in the uplink control channel receiving mode by the control signal RCTL. In addition, a switch circuit (26
2) is also placed in the on-footer state. The base unit (2) therefore enters standby mode. Furthermore, in the hand sent (1), after transmitting the command signal CMND indicating the end of the call, the transmitting circuit (110) is prohibited from transmitting by the control signal TCTL, and the receiving circuit (120) is prohibited from transmitting by the control signal RCTL. It is assumed to be in standby mode on the control channel.

[Registration of identification code]

When you purchase an additional (or 1 unit) handset (1) and install a battery (not shown) for its power supply, the processing of the microcomputer (140) starts from step (301) of the routine (300) and continues. Step (302)
In, a transmitting circuit (110) and a receiving circuit (120)
At the same time, the microcontroller (140) enters sleeve mode (power down mode) and the key (
The handset (1) enters a non-operating state in which only inputs from 131) to (137) are accepted, and the handset (1) waits in this non-operating state. Furthermore, in the base unit (2), when the power source (this is a commercial AC power source) is connected, the processing of the microcomputer (240) starts from step (401) of the routine (400), and then from step (402). ), the standby mode is set, and the transmitting circuit (210) is in a disabled state,
The receiving circuit (220) receives and monitors the uplink control channel, and also monitors the registration switch (233). When registering the identification code SYID (and 1 (SID) in the handset (1), the base unit (
Turn on the registration switch (233) on the handset (1) temporarily and turn on the program key (133) on the handset (1).
), talk key (132), and dial key (131)
) at the same time. In this case, the number keys pressed on the dial key (131) are
Handset number (handset identification code) assigned to [(
This is a key that indicates the Sr port, for example, an additional handset (
If you want to assign the handset number "2" to 1), select "2".
” is the key. Then, in the base unit (2), the switch (
233) is pressed, the process moves to step (40).
2) to step (403), and this step (4
03), it is checked whether the reason why the process has proceeded to this step (403) is because the registration switch (233) was pressed; in this case, the registration switch (233) is pressed.
33) was pressed, the process goes to step (403).
) to step (411), and this step (41
In 1), by checking the presence or absence of the carrier component,
It is checked whether the control channel is in use. And when the control channel is not used,
The process proceeds from step (411) to step (412), and in this step (412), the control code CT
A command signal CMND indicating that RL is a registration of identification code 5YID and HSID is generated, and a command signal CMNO of this registration is transmitted to F of the downlink control channel.
M signal Sd is transmitted to the handset (1), and then, in step (413), the transmission circuit (210
) is prohibited. On the other hand, in the handset (1), since the key was pressed, the process starts from step (302) to step (303).
), and in this step (303), the pressed key is the program key (133) and the talk key (1
32) and the numeric keys of the dial key (131). In this case, since these keys have been pressed, the process proceeds from step (303) to step (311). Then, in this step (311), the receiving circuit (
120) is permitted to be received on the downlink control channel, and the process then proceeds to step (312), in which it is checked whether the registration command signal CMND of step (412) has been received; In this case, it can be received, so the process is step (312)
) to step (313), where the oscillation circuit (138)
is controlled and a confirmation sound is output from the speaker (139), and then in step (314) the device waits for input of the password ID. If, for example, the last two digits of the identification code 5YID displayed on the base unit (2) are entered as the password 10 using the dial key (131), the process proceeds from step (314) to step (321). , In this step (321) it is checked whether the control channel is used. And when the control channel is not used,
The process proceeds from step (321) to step (322), and in this step (322), the control code CT
A command signal CMNO is generated indicating that RL is a registration response, the identification code (handset number) HSID input in step (302), and the password ID input in step (314), and this command signal CMIII
[) is transmitted to the base unit (2) by the FM signal Su on the upstream control channel. Furthermore, at this time,
Identification code 5Y10 used in command signal CMND
is the identification code 5 sent in step (412).
It is considered YID. Then, in the base unit (2), the step (
413), the process proceeds to step (421), in which it is checked whether the command signal CMND of step (322) has been received;
When received, the process proceeds from step (421) to step (422), and in this step (422), the password ID sent in step (322) is received.
and the identification code 5YI stored in Mori (241).
The last two digits of D are compared and it is checked whether they match. Then, when they match, the process proceeds to step (422).
Proceed to step (423) from this step (423).
), it is checked whether the identification code (handset number) HSID sent in step (322) is already in use, and if it is not in use, the process moves from step (423) to step (424).
), and in this step (424), the control code CTRL is changed to the identification code 5YID and the identification code H5.
A command signal CMND indicating permission to register the ID is generated and transmitted to the handset (1) via the downstream control channel. When this transmission is completed, the process returns to step (402), and the base unit (2) returns to the standby state. Further, in the handset (1), the process proceeds to step (323) following step (322), and in this step (323), a command signal CM for prohibiting registration of the identification code 5YID is transmitted from the base unit (2).
It is checked whether NO has been transmitted (the meaning of this command signal CMND will be described later), and if such a command signal CMND has not been transmitted, the process proceeds from step (323) to step (32).
4), in this step (324) it is checked whether a command signal CMND indicating that the identification code HSID is duplicated has been transmitted from the base unit (2), and if such a command signal CMND
has not been sent, the process proceeds to step (3).
24) and proceeds to step (325). Then, in this step (325), step (
It is checked whether the command signal CMND of 424) has been received, and when it has been received, the process proceeds from step (325) to step (326), in which the system identification code 5YID and the identification code HSID are is written to the memory (141) and then in step (327) the speaker (139
) will output a confirmation tone, and from then on this handset (1
), the standby mode described above is entered in step (330). As described above, the system identification code 5YID and the handset identification code 1 (SID) are registered in the handset (1) of the extension (or v-gateway). Note that in step (303), the pressed key is
When it is checked whether the program key (133), the talk key (132), and the numeric keys of the dial key (131) are pressed, if these keys are not pressed, the process proceeds to step Proceeding from (303) to step (309), in this step (309),
Processing corresponding to the pressed key is performed. Also, steps (312), (314), (321),
In step (325), if the desired signal or input is not obtained in those steps, the process proceeds from those steps to steps (341) to (344) to check whether the time limit has been exceeded, and if the time limit has not been exceeded. Sometimes, the process returns to the original step and waits again for the desired signal or input, but if the time limit is exceeded, the process proceeds from steps (341) to (344) to step (349) and returns to this step ( At 349), an error tone is output from the speaker (139), after which the process returns to step (302) and the handset (1) becomes inactive again. On the other hand, also in the base unit (2), step (4)
In step 03), if the reason for proceeding to step (403) is not because the registration switch (233) was pressed, the process proceeds from step (403) to step (409).
), and in this step (409), corresponding processing is performed. Further, in steps (411) and (421), if the target signal is not obtained in those steps, the processing is performed from those steps to step (441).
, (442), where it is checked whether or not the time limit has been exceeded. If the time limit has not been exceeded, the process returns to the original step and waits for the target signal or input again. However, when the time limit has been exceeded, the process continues. Step (441), (
442) returns to step (402). Further, in step (422), step (42
If the PIN IDs received in step 1) do not match, the process proceeds from step (422) to step (443), and in this step (443), the control code CTR
A command signal CMND is formed in which L indicates prohibition of registration of identification codes 5YID and H5ID, and this signal CMN
D sends a hand via the downlink control channel (1)
sent to. This command signal CMND is then transmitted to the handset (
1), and the processing in the handset (1) proceeds from step (323) to step (349). Further, in step (423), the handset (
If the handset identification codes H3ID sent by 1) in step (322) are duplicated, the process proceeds to step (322).
423), the process proceeds to step (444), and in this step (444), the control code CTRL is a command signal C indicating that the handset identification code HSID is duplicated.
A MND is formed and this signal CMND is transmitted to the handset (1) via a downstream control channel. Then, this command signal CMNO is transmitted to the handset (
1), processing in the handset (1) proceeds from step (324) to step (345), in which another error tone is sounded from the speaker (139); Thereafter, the process proceeds to step (349). As described above, according to the present invention, the expansion or one
System identification code 5YI on the second handset (1)
In this case, in particular, according to the present invention, the base unit (2) is given a unique identification code 5YID, and the identification code HSID can be registered. Part of the 5YID can be expanded or used as the first handset. Since the system identification code 5YID and the handset identification code HSID are used as the password ID when registering in the base unit (1), there is no need for a numeric keypad to input the password 10 in the base unit (2). Therefore, the base unit without dial keys (2)
However, additional handsets (1) can be installed. Furthermore, you only need to enter the PIN number 10 on the handset (1), and the same PIN number I on the base unit (2).
Since there is no need to input D, the identification code 5YID and the slave device identification code (IsID) can be easily registered. Furthermore, for this purpose, it is only necessary to make the identification code (call code) 5YID, which is required by the Radio Law, visible to the user, and there is no need to add any special circuits or elements. For example, only the last two digits of the identification board 5YID may be made visible from the outside of the base unit (2), and these may be input in step (314). Furthermore, if the PIN number 10 is displayed on the base unit (2) using a sticker, for example, it may peel off or get dirty, but in this invention, the identification code 5YID displayed according to the Radio Law is used. Therefore, the problems that occur when using stickers etc. do not occur. G2 Second Embodiment In the United States, 1O duplex channels of channels 1 to 10 are provided for cordless telephones, but no control channel is provided. Furthermore, even in Japan, weak type cordless telephones do not have a control channel. In the case of a cordless telephone without a control channel, the handset (1) and base unit (2) may be connected by the method shown in FIG. That is, since the base unit (2) operates on commercial AC power, during standby, it monitors the reception of the 1st channel to the 10th channel in order, and constantly repeats this reception monitoring to receive connection requests from the HuntSent (1). wait. At this time, the time required to detect a connection request from the handset (1) is approximately 120 msec per channel. Therefore, the handset (1) has the first channel ~
Any of the tenth channels can be used to request a connection to the base unit (2). Further, during standby, the handset (1) monitors the reception of empty channels, for example, the 3rd channel and the 7th channel, and checks for a connection request from the base unit (2).If there is no connection request, then, for example, the 3rd channel .5
It repeats the action of entering sleeve mode for a second. Therefore, the base unit (2) uses the 3,000th channel or the 7th channel to connect the handset (1).
You can request a connection to. Therefore, the identification code 5YIDSHSID can be registered in the same way as when there is a control channel. G3 Other Embodiments Note that in the above, even if the control channel can be used, steps (312), (322), (412),
(421) may use the control channel, and the other command signals CMND may be accessed using the communication channel. In addition, in the above, the base unit (2) receives the PIN number 10 sent from the handset (1).
and the identification code SYI port of the memory (241), but in the handset (1), the base unit (
The password 10 sent from 2) may be compared with the password In input from the dial key (131). Further, the handset (1) may be provided with a key dedicated to registering the identification code, or a plurality of specific keys may be pressed simultaneously on the base unit (2) instead of the dedicated key (233). H Effects of the Invention According to this invention, by utilizing the fact that the base unit (2) is given a unique identification code 5YID, a part of the identification code 5YID is added or added to the first white handset (1). Since the system identification code 5YID and handset identification code HSID are used as the PIN ID when registering, the PIN 1 is stored in the base unit (2).
No need for a numeric keypad to enter 0. Therefore, the base unit without dial keys (2)
However, additional handsets (1) can be installed. Furthermore, you only need to enter the PIN ID for the handset (1) (and the same PIN ID for the base unit (2).
Since there is no need to input D, the identification code 5YID and the handset identification code H5ID can be easily registered. Furthermore, for this purpose, it is only necessary to make the identification code (call code) 5YID, which is required by the Radio Law, visible to the user, and there is no need to add any special circuits or elements. For example, it is sufficient to make only the last two digits of the identification code 5YID visible from the outside of the base unit (2) and input them in step (314). Furthermore, if the PIN number IO is displayed on the base unit (2) using a sticker, for example, it may peel off or get dirty, but in this invention, the identification code 5YID displayed according to the Radio Law is used. Therefore, the problems that occur when using stickers etc. do not occur.

[Brief explanation of drawings]

Figure 1 is a system diagram showing an example of this invention, Figure 2 is a diagram showing an example of its signal format, Figures 3 to 5 are sequence diagrams, and Figures 6 and 7 are flowcharts of this invention. , FIG. 8 is a diagram for explaining the invention in detail. (IE: Han F Se Nt, (2) Habase Uni Nt,
(110), (210) are transmitting circuits, (120), (2
20) is a receiving circuit, (140) and (240) are microcomputers, and (300) and (400) are processing routines. Agent Hidemori Matsukuma Hunt set (1) 1 knit stitch (2) Fig. 3

Claims (1)

[Scope of Claims] The base unit has a base unit connected to a telephone line, and a slave unit to which an audio signal line is connected to the base unit through radio waves during a call, and the base unit connects itself to other cordless telephones. It has a memory in which an identification code is written to distinguish it from the above, and a display section that displays the identification code, and at least some digits of the identification code displayed on the display section.
When inputting from the dial keys of the slave unit, this input data is compared with the corresponding digit of the identification code written in the memory of the base unit, and as a result of this comparison, the input data and the identification code are compared. The cordless telephone is configured such that the identification code is registered in the handset when the corresponding digits of the code match.