JPH0329427A - Radio telephone equipment - Google Patents

Abstract

PURPOSE:To surely detect a data from a slave set by allowing a master set to send a data for callout at the call from the master station, to set a detection time width in response to number of slave sets to be called and allowing the slave station to reply the callout data and its own identification signal in time division. CONSTITUTION:In the case of an incoming call or an extension callout, a master set 1 sends a data including an identification signal of slave sets 2-4 to the slave sets 2-4 and the slave sets 2-4 sends the reply data based on the call data in time division. Moreover, the master set 1 detects the data from the slave sets 2-4 in a detection time width in response to the number of the slave sets 2-4 to be called. Moreover, the master set 1 sends the call signal based o the reply data from the slave sets 2-4 and when a control signal is sent from the slave sets 2-4 in response thereto, the data including the identification signal of the slave sets 2-4 is sent. When the identification signal included in the data is coincident with its own identification, the slave sets 2-4 are set to the communication mode. Thus, the data from the slave sets 2-4 is surely detected.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a wireless telephone device, and in particular to a base unit connected to a telephone line and a plurality of slave units connected to the base unit via a wireless line. The present invention relates to a wireless telephone device having the following.

(b) Prior art Conventionally, as this type of radio telephone device, for example, the
The one disclosed in Publication No. 55333 (HO 4B7/2 6) is known.

This type of wireless telephone device has a base unit connected to a telephone line and a plurality of slave units connected to the base unit via wireless links,
When a call is received, the base unit puts the repeater control circuit into the incoming call state based on the detection of an incoming call signal from the telephone line, and transmits a ringing tone from the tone generation circuit to the slave unit. The handset operates a ringing tone generation circuit based on the ringing tone from the base unit, and issues a ringing sound from the speaker power.

In such a calling state, when the hang-up circuit of the handset is turned on, it is first determined whether or not there is a mute signal from the base, and if there is no mute signal, a calling up tone is transmitted to the base. The main unit is a hanger from the machine f.
Based on the tone, the hang-up operation for the telephone line is completed and a mute signal is sent to the handset.

The handset is prohibited from transmitting and talking based on the mute signal, but the handset that sent the hang-up signal refuses to be controlled based on the mute signal, so the handset and base are in a 1-to-1 situation. are connected by the relationship.

(c) Problems to be Solved by the Invention According to the above-mentioned conventional technology, it is possible to ensure the connection between the base unit and the slave unit as well as the confidentiality of calls, but the transmission from the base unit to the slave unit can be ensured. It is not possible to judge whether or not the calling signal received by the handset is being reliably received by the handset, resulting in the problem of needlessly continuing to send calling signals to the handset that cannot receive the calling signal. be.

Also, if multiple handsets send out hang-up signals at the same time, interference will occur between the signals sent from the handsets, and the base unit will not be able to detect the hang-up signal, even if a hang-up operation is performed. Regardless, there is a risk that the problem of not being able to connect to the telephone line may occur.

(2) Means for Solving the Problems In view of the above points, the present invention includes a base unit connected to a telephone line, and a number of slave units connected to the base unit via wireless lines. , when an incoming call or an extension call is made, the base unit transmits data including an identification signal of each slave unit to the plurality of slave units, and also calls a time width for detecting data sent from the slave units. The setting is made according to the number of slave units, and the slave units are configured to transmit data in response to the data from the base unit in a time-sharing manner based on the data from the base unit.

The base unit also includes a base unit connected to a telephone line and a plurality of handsets connected to the base unit via wireless lines, and when a call is received or an extension is called, the base unit connects to the plurality of handsets. The client is instructed to send calling data including the identification signal of each handset, and to set the time width for detecting response data from the handset according to the number of handsets being called. The base unit is configured to sequentially send response data at predetermined timings based on the call data, and the base unit sends a call signal to the slave unit based on the response data, and operates the slave unit in response to the call signal. In accordance with the operation signal sent from the handset, the handset sends data including the identification signal of the handset that sent the operation signal, and the handset makes a call based on the identification signal included in the data and its own identification signal. It is characterized by being set to the state.

(e) Effect According to the present invention, when a call arrives or an extension call is made, the base unit sends data including the identification signal of each f unit to a plurality of handsets, and the handsets are based on the call data. Data for each response is sent in time division. Further, the base unit detects data from the slave units with a detection time width corresponding to the number of slave units to be called.

Further, the base unit sends out a calling signal based on the response data from the slave unit, and when the slave unit transmits an operation signal in response thereto, it transmits data including an identification signal of the slave unit.

When the identification signal included in this data matches its own identification signal, the handset is set to a talking state.

(f) Embodiment FIG. 1 is a horizontal view of the present invention, and (1) is a telephone line (L
), and (2), (3), and (4) are a plurality of slave units connected to the base unit (1) via wireless lines.

FIG. 2 is a diagram showing an embodiment of the base unit in the wireless telephone device of the present invention. (5) is a receiving antenna, (6) is a high-frequency amplifier circuit that amplifies the received high-frequency signal from the receiving antenna (5), (7) is a receiving PLL section that serves as a local oscillation circuit, and (8) is a high-frequency amplifier circuit ( (9) is a mixing circuit that mixes the high frequency signal from 6) and the oscillation signal from the reception PLL section (7) to derive a predetermined intermediate frequency signal;
), an intermediate frequency amplification circuit that amplifies the intermediate frequency signal from (
1o) is a detection circuit that detects the intermediate frequency signal from the intermediate frequency amplification circuit (9), (11) is a t-sampler that amplifies the detection signal from the detection circuit (10), and (12) is the detection circuit (1).
This is a modem for converting the detection signal from 0) into digital data, and the converted digital data is sent to the control circuit (13
). The control circuit (13) executes the program stored in the program memory (13a).
It consists of a U (13b), a data memory (13c) in which the number of connected handsets, an identification signal (ID signal) of each handset, etc. are stored in a prioritized manner, and a TO boat (13d). has been done. Further, the modem (12) converts the digital data from the control circuit (13) into M S K (Min
imum Shift Keying) signal. (l4) is a modulation circuit to which the signal from the modem (l2) is supplied as a modulation signal and the transmitting PLL section (15) is supplied as a modulated signal; (16) and (17) are the modulation circuit (l4); A transmission amplifier circuit for amplifying the output to a predetermined transmission level, (18) a transmission antenna, (19)
) has a common terminal, a data terminal, an extension terminal and an outside terminal connected to the modulation circuit (14), and the control circuit (13)
A first switch controlled by a control signal (S) of
20) has an extension terminal connected to the extension terminal of the first switch (19), a common terminal connected to the microphone (2l), and an outside terminal connected to the hive knot transformer circuit (not shown). The second switch (22), which is controlled by the control signal (S,) from the control circuit (l3), is a common terminal connected to the output end of the field width W (11), and the 4& A third switch (23) has a unified outside line terminal and an extension line terminal and is controlled by a control signal (S,) from a control circuit (13), and a speaker (24).
A common terminal connected to the hybrid transformer circuit, an external line terminal connected to the hybrid transformer circuit, and an extension terminal connected to the extension terminal of the third switch (22), and the control signal (S4) of the control circuit (13) controlled fourth switch, (25)
is placed on the power supply line of the receiving system circuit, and is connected to the control circuit (1
3) A fifth switch (26) controlled by the control signal (S.) is arranged on the power supply line of the transmission system circuit,
This is the sixth switch controlled by the control signal (S.) from the control circuit (13).

FIG. 3 is a diagram showing an embodiment of the handset in the wireless telephone equipment of the present invention. Since it basically has the same configuration as FIG. 2, a dash is added to the reference numerals in FIG. The explanation will be omitted.

However, compared to FIG. 2, the second to fourth switches (20)
(22) and (23) are deleted, and data memory (13) is deleted.
c') stores its own ID signal, is equipped with an operation detection section (27) that detects the operation of the call switch, etc., and the first switch (19°) connects the data terminal and the audio terminal. They are different in that they are equipped.

FIG. 4 is a block diagram functionally showing the control circuit (13) of the base unit. In FIG. 4, (28) is the control section, (
29) is a memory unit that stores the ID signal of each child device, and corresponds to a predetermined area of the data memory (13c).

(30) is an address counter that specifies the address range of the memory unit (29) based on the control signal (s7) from the control unit (28), and (31) is the digital data from the modem (l2) and the memory unit (29). ) Garano! A data detection unit (32) detects each type of data based on the D signal and a signal from the data detection unit (31) (this means that the ID signal included in the digital data matches the ID signal from the memory unit). A flag register that stores the
(33) is a counter that coefficients the clock (CLK) signal from the control unit (28), and determines the time width for detecting data sent from each child device. Also, the counter (
33) is a carry or borrow (C/
B) It is designed to output a signal and return to its initial value. (34) is a counter that counts the carry or borrow signal from the counter (33). Note that the carry or borrow signal is also supplied to an address counter (30), and the address counter (30) is configured to increment in accordance with the carry or borrow signal.

(35) is a setting section in which a value N corresponding to the number of slave devices to be called is set. (36) is a matching circuit that determines whether the coefficient value of the counter (34) matches the value set in the setting section (35), and the matching signal (S) is sent to the counter (
33) (34) and an address counter (30), and is also supplied to the control unit (28). (37) is a timer that measures time T, and (38) is a counter that maintains the number of handsets that are valid for calling.

FIG. 5 is a block diagram functionally showing the control circuit 911 (13°) of the slave unit. In FIG. 5, (39) is a control unit, (40) is a memory unit that stores an ID signal of an accident,
It corresponds to a predetermined area of the data memory (13c').

(4l) is a data detection section that detects various data based on the digital data from the modem (12') and the ID signal from the memo section (40).

Next, the main part flowchart of the main unit shown in FIG.
The operation will be explained by referring to the main part flowchart of the handset shown in the figure and the schematic operation waveform diagram shown in FIG.

When the base unit (1) is powered on, it first determines whether there is an incoming call via the telephone line, and if there is no incoming call,
Next, it is determined whether there is an extension call request (S-1
．． 2). Then, if there is no incoming call or extension call request, the above procedure can be repeated.

On the other hand, when an incoming call signal arrives via the telephone line, it is detected by a ringer detection circuit (not shown) provided in the base unit, and the ringer detection circuit sends the detection signal to the control circuit (13).
supply to. The control circuit (13) determines that there is an incoming call based on the detection signal, and sends the call data including the ID signal of each handset to all handsets or a specific number of handsets at time (t1). Send (S-1.3).

Specifically, it is performed as follows. The 11th circuit (l3) of the system outputs a control signal (S6) and the 6th circuit (13) outputs a control signal (S6).
26), supply power to the transmission system circuit, output the control signal (S1), and change the first switch (19) to the data terminal side, and then transfer the call data to the modem (1).
2). The modem (12) modulates the previous call data (digital signal) into an analog signal format, and then sends it to the modulation circuit (14) via the first switch (19). The modulation circuit (14) modulates the oscillation signal (which becomes a transmission carrier signal) from the transmission PLL section (15) with the output signal from the modem (12). The thus modulated signal is then amplified to a predetermined transmission level in the transmission amplifier circuits (16) and (17), and then sent out from the transmission antenna (5).

After sending out the calling data, the control circuit (13) supplies a control signal (S7) to the address counter (30) to designate the change range of the address counter (30) and to set the value N( corresponding to the number of handsets to be called). In the case of the embodiment, 3) is set in the setting section (35). At the same time, the timer (37) is operated and a clock signal is supplied to the counter (33).

On the other hand, if the handset is powered on, the control circuit (13
The control signal (S.') from the fifth switch (25
Since the fifth switch (25') is closed intermittently, the reception antenna (5') is closed when the fifth switch (25') is closed.
) receives the call data, the received signal is amplified by the reception high frequency amplification circuit (6°), and then sent to the mixing circuit (8').
) is mixed with the oscillation signal from the receiving PLL section (7゛) and converted into an intermediate frequency signal, and then sent to the intermediate frequency amplifier circuit (9).
The signal is amplified by the detector circuit (10') and then detected by the detector circuit (10'). The signal thus detected is converted into a digital signal by the modem (12°) and then supplied to the control circuit (13').

The control circuit (13') determines whether or not it is calling itself based on its own ID signal stored in the memory section (40) and the data signal from the modem (12°). For example, the response timing is set based on the number of called handsets and the sending order included in the call data (S-10 (1. 101). Then, when the set response timing is reached, the control Circuit (13')
outputs the control signal (S1) and switches the sixth switch (26'
), supply power to the transmission system circuit and output the control signal (S,') to switch the first switch (19°) to the data terminal side, and then output the response data including the ID signal. is supplied to the modem (12'). The modem (12°) modulates the response data (digital signal) into an analog signal format, and then switches the response data (digital signal) to the first switch (19').
) to the modulation circuit (14'). Modulation circuit (
At 14'), the oscillation signal from the transmitting PLL section (15') is modified using the output signal from the modem (12°). The thus modulated signal is then amplified to a predetermined transmission level in the transmission amplifier circuit (16°) (17') and then transmitted from the transmission antenna (I8').

By the way, as mentioned above, after sending the call data, the base unit (1) specifies the change range of the address counter (3(+)) and sets the setting fifi N, and starts supplying the clock signal. In this state, the address counter (30) is set to the address for the child device with the first priority, and the counter (34) is set to "0".

The counter (33) counts the clock signal, and when the counted value reaches a value corresponding to time T1, it outputs a carry or borrow signal, and then the initial M value is set. In addition, the carry or borrow signal of the counter (33) is supplied to the address counter (30), and its contents are incremented, and the address for the slave unit with the second priority is set, and the address is also sent to the counter (34). Supplied, Itf number anop.

Then, the control unit (28) is set! At the detection time gNT, for detecting data from the handset determined by the N value set in (35), the ID signal read from the memory section (29) and the data from the modem (12) A match with the included ID signal is detected, and if a match is found, it is determined that there is response data (S-6).

At this time, the control unit (28) sets a response flag 1" in the response flag register (32) specified by the value of the counter (34). Detection of such response data is performed when the content of the counter (34) is "1". This will continue until it reaches 3” (S
-7. 8, 9).

This operation will be explained in more detail based on the system shown in FIG. Furthermore, priority is given in the order of handset 1, handset 2, and handset 3, and each ID signal is sent to X. Y. Let it be Z.

The base unit that transmitted the call data at time t1 shown in FIG. 8 sets the address counter (30) to the slave I! The address corresponding to l1 is set, and "3" is set in the setting section (35).

Then, the counter (33) is in the coefficient and the counter (33) is in the coefficient.
4) is "0", when data including the ID signal X is detected at time t, the control unit (28) registers the response flag register (32 ), the response flag 1'' is sent to the counter (3).
3) reaches the count value corresponding to time T1, the address counter (30) is set to the address value corresponding to child P&2, and the value of the counter (34) becomes rlJ. Then, when data including the ID signal Y is detected at time t3, a response flag 1'' is set in the response flag register (32) corresponding to the child device with the second priority.

The following operations operate in the same manner, but in the example of FIG. 8, no response data from handset 3 is detected, so the content of the response flag register becomes rllOJ, and the control unit (28) sends the call data only to handset 3 again. do.

Itj L, only the handset 3 requires retransmission, so
The address counter (30) is set to the address value corresponding to the handset 3, and the setting section (35) is set to "1". Such retransmission continues until response data from the handset 3 is detected or the timer (37) measures the interval T (S-10, 11.12, 13).

Then, when all the response flags become 1 or when time T has elapsed, the base unit sends a calling signal including the ID signal of each slave unit to the slave units whose response flags are “1” (S-14
).

On the other hand, after sending the response data in S-1O2, the handset is in a reception standby state, and when it receives a calling signal including its own ID signal (S-103). A ringer is notified by supplying a ringing signal to a ringer circuit (not shown). Next, it is detected based on the signal from the operation detection unit (27) whether or not there has been an operation of the call switch, etc., and if there is no operation, response data is sent out in the same way as when receiving the above-mentioned call data (S-106, 1o7). ). On the other hand, if a call switch or the like is operated, an operation signal including its own ID signal is sent out (S-108).

Even after sending out the calling signal, the base unit transmits operation signals or response data from the handsets at a time interval corresponding to the number of handsets that have called, as in the case of detecting a response from the handsets described above. Detect (S-15).

When the operation signal is received, the response flag is set to “1l”.
is set in the flag register (32). Next, the number of response flags "l1" included in the flag register (32) is detected, and it is determined whether there are multiple handsets that have sent the operation signal (S-16>. As a result, the operation signal Δ is If there are multiple handsets sent, the handset to be called is determined based on the priority order stored in the data memo 'J (13c), and then the operation response signal including the [D signal of the handset is sent to the handset. After sending the message, the call state is set (S-17, 18, 1
9).

On the other hand, after transmitting the operation signal, the slave unit determines whether an operation response signal has been received, and if the operation response call is received and the ID signal included therein matches its own ID signal, the slave unit Set to talking state (S-1F19, 110,
111). Note that the handset whose ID signals do not match ends the call and returns to the initial state. Further, if the slave unit receives an operation response signal from the base unit before receiving the call signal from the base unit, it immediately ends the call processing operation and returns to the initial state (S-103, 104, 105).

When the base unit cannot receive the operation signal from the slave unit, the base unit determines whether or not all response data has been received based on the response flag stored in the flag register (32);
If all are received, the call signal is sent again (S
-20). On the other hand, if the response data could not be received, the count value of a counter (not shown) corresponding to the handset that could not receive the response data is incremented by one. When the counted value reaches a predetermined value, the calling operation of the corresponding handset is stopped, and the value of the counter (38) that stores the number of called handsets is set to 1.
Count down. When the value of the counter (38) becomes "O", the calling operation ends and returns to the initial state (S-2
1.22, 23, 24).

Note that the counter that counts the number of unresponsive times of the handset is reset to "O" when response data is detected, and at this time, the value of the counter (38) is also returned to its initial state.

By the way, in the above-mentioned embodiment, the calling data is first sent, and the calling signal is sent to the handset that responds to the calling data to drive the ringer circuit of the handset. Alternatively, the ringer circuit of the slave device may be driven. Further, although the present invention has been explained using a block diagram in order to facilitate understanding of the present invention, it can be realized by software processing by a microcomputer. Furthermore, transmission and reception may be achieved with a single antenna, but in that case, a separate transmission and reception filter is required.

(g) Effects of the Invention According to the present invention, when a call is made from a base unit, the base unit sets the detection time congestion according to the number of slave units to be called after sending data for the call, and the slave unit sets the detection time congestion according to the number of slave units to be called. Since responses are made in a time-division manner according to the calling data and the self-identification signal, data from the handset can be reliably detected.

In addition, since the handset that was unable to respond to the call will be called again, the handset that was unable to respond to the first call due to unforeseen circumstances will also be called. This allows for efficient calling of slave units.

Furthermore, since the detection time congestion is set in accordance with the number of slave units to be called again when the call is made again, the response data of the slave units can be efficiently detected when the call is made again.

In addition, the base unit transmits calling data including an identification signal of each slave unit to the plurality of slave units, and sets the time width for detecting response data from the slave units according to the number of slave units to be called. the main device sends a call signal to the child device based on the response data, and the master device sends a calling signal to the child device based on the response data. At the same time, in accordance with the operation signal from the slave unit sent by operating the slave unit in response to the calling signal, the slave unit transmits data including an identification signal of the slave unit that sent the operation signal, and the slave unit receives the identification signal included in the data. Since the communication state is set based on the match between the signal and the self-identification signal, data from the handset can be reliably detected, and the connection between the parent and child can be reliably established.

Furthermore, when the operation signal is sent from ni number of slave units, data including the identification BI1 signal of the higher rank slave unit is transmitted based on the preset priority order, so that the connection between the parent and child is maintained at the predetermined priority level. With this, you will definitely reach your goal.

4. ffff Simple explanation of the drawings Fig. 1 is a system configuration diagram of the present invention, Fig. 2 is a block diagram showing an example of grooves in the parent unit, and Fig. 3 is a pro/clamp diagram showing the structure of the slave unit. Figure 4 is a functional block diagram used to explain the operation of the control circuit of the master unit, Figure 5 is a functional block diagram used to explain the operation of the control circuit of the slave unit, and Figure 6 is a functional block diagram used to explain the operation of the control circuit of the slave unit. FIG. 7 is a flowchart of the slave device, and FIG. 8 is a schematic operation waveform diagram showing system operation.

(1)... Master unit, (2nd unit (3) (4)... Slave unit, (13) (13')... Control circuit, (28th unit...
Control unit, (29)...Memory unit, (30)...Address counter, (31)...Data detection unit, (32)
...Flag register, (33) (34) (38)...
- Counter, (35 - Setting section, (36 - Coincidence circuit, (37) - Timer (39) - Control section, (40) - Memory section, (41) -・Data detection section.

Claims (5)

[Claims] (1) It has a base unit connected to a telephone line and a plurality of handsets connected to the base unit via a wireless line, and when a call is received or an extension is called, the base unit connects to the handsets. The time width for transmitting data including the identification signal of each handset and detecting the data sent from the handsets is set according to the number of handsets to be called. 1. A radiotelephone device characterized in that the radiotelephone device is configured to transmit data in response to data in a time-division manner based on data from the radiotelephone device. (2) The wireless telephone according to claim 1, wherein, when making a call, the base unit transmits data for calling again to a slave unit that has not detected the data among the slave units that have called. Device. (3) When transmitting data for calling again, the base unit is configured to set a time width for detecting data sent from the slave units according to the number of slave units to be called again. 3. The radiotelephone device according to claim 2, further comprising: (4) It has a base unit connected to a wireless line and a plurality of slave units connected to the base unit via the wireless line, and when a call is received or an extension is called, the base unit connects to the plurality of slave units. The configuration is configured so that the time width for transmitting calling data including an identification signal of each handset and detecting response data from the handsets is set according to the number of handsets to be called. The base unit is configured to sequentially send response data at predetermined timings based on the call data, and the base unit sends a call signal to the slave unit based on the response data, and operates the slave unit in response to the call signal. In accordance with the operation signal from the slave unit sent by the slave unit, data including the identification signal of the slave unit that sent the operation signal is sent out, and the slave unit determines whether the identification signal included in the data matches its own identification signal. A wireless telephone device characterized in that the wireless telephone device is set to a talking state based on the following. (5) When the operation signal is sent from a plurality of slave units, the base unit transmits data including an identification signal of a higher rank slave unit based on a preset priority order. The radiotelephone device according to claim 4.