JPH02184156A - Selection signal transmitter - Google Patents

Abstract

PURPOSE:To insert an optimum pause period to the rear part of a dial signal of the pulse system or the DTMF system and to shorten the entire transmission time for a selection signal by introducing a make rate to control information. CONSTITUTION:A dial signal generating means 10 receiving a dial data DD based on dial numbers 0-9 and generating a pulse type dial signal DP corresponding to the dial data DD and an inter-digit signal generating means 20 for inserting an inter-digit signal PT between the dial signal DP sent to a telephone line L and the dial signal DP to be sent next to the telephone line L are provided to the transmitter. Then an inter-digit signal DT is generated based on a pulse signal speed V and a make rate M of the dial signal DP. Thus, as to the inter-digit signal inserted to the rear part of the dial pulse signal, the selection signal transmission time is shortened by including the pulse speed and the make rate to the selection cause of the length.

Description

[Detailed Description of the Invention] [Summary] A pulse type dial signal for sending out to a telephone line, furthermore, a DTM F (Dial Tone Mult)
Regarding the selection signal sending device that generates a Freque--cy type dial signal and sends the dial number and interdigit signal to the telephone line, the length of the interdigit signal inserted after the pulse type dial signal is The purpose of this system is to include the pulse speed and make rate as selection factors for the selection signal, and to shorten the selection signal transmission time. and interdigit signal generation means for inserting an interdigit signal between the dial signal and a dial signal to be next transmitted to the telephone line after the dial signal is transmitted to the telephone line. The inter-digit signal is generated based on the pulse signal speed and make rate of the dial signal, and the signal sending device is configured to transmit a dial tone synthesis (DTMF) type dial signal. DTMF generating means is provided, and the length of the inter-digit signal inserted after sending the dial signal to the telephone line is different from the length of the inter-digit signal of the pulse-type dial signal.

[Industrial application field]

The present invention relates to a selection signal sending device, and more specifically, the present invention relates to a selection signal sending device, and more specifically, it generates a pulse-type dial signal to send to a telephone line, and furthermore, a DTMF-type dial signal, and transmits the dial signal to the telephone line. The present invention relates to a selection signal sending device for sending out a selection signal.

In recent years, the functions of telephones have become multifunctional, such as image transmission in addition to telephone calls. By the way, pulse method and DTM
A pause period longer than the minimum pause specified by the Ordinance of the Ministry of Posts and Telecommunications is inserted after the dial signal of the F method. This pause period occurs after the dialing signal is sent out on the telephone line.
This is done by sending an interdigit signal. The shorter the pause period, the faster the partner station can be called. Moreover, the occupation of the telephone exchange for the selection is also shortened.

However, since the make rate is not taken into consideration when generating the pause period of the pulse type dial signal, the certified pause period is 60% for the pulse rate of 101PPsI.
0 [msl is not realized.

Therefore, there is a desire for an apparatus that includes the make rate in the control information and generates an interdigit signal that matches the minimum pose.

[Conventional technology]

5 and 6 are explanatory diagrams related to the conventional example.

FIG. 5 shows a configuration diagram of a conventional selection signal sending device.

In the figure, la is D TMF (Dial To
ne Multi Frequency) generation circuit, i
b is a dial pulse generating circuit, which generates dial signals PB and DP based on respective dial data DD. They are selectively sent out to the telephone line according to dial mode S.

2 is an interdigit signal generation circuit, which includes a selector 6, a presettable down counter 4, and an FF (flip-flop) circuit 5.
The 0-digit signal generation circuit 2, which consists of A pause period is inserted using an interdigit signal PT.

The inter-digit signal PT is, for example, the dial signal PB of "8" when the dial number "8" pulse method or the DTMF method two data PB and DP are sent to the telephone line.
This is the period from the rear of DP to the dialing signals PB and DP related to the next dialed number "X".

3 is a 50ss/loo++s clock generation circuit which inputs the pulse speed selection signal PvS and the pulse/DTMF selection signal PDS and outputs a 50Ils clock signal or a 100a+s clock signal.

By the way, the minimum length of the inter-digit signals PT and BT inserted after the dial signals PB and DP is determined by standards. For example, in Japan, the minimum length of the interdigit signals PT and BT inserted after the dial signals PB and DP is determined by the Ministry of Posts and Telecommunications Ordinance "Terminal Equipment Regulations", etc.
In the United States, it is defined by FCC part 68. According to the Ministry of Posts and Telecommunications Ordinance “Terminal Equipment Regulations J, dial mode S,
The relationship between the pulse speed ■ and the minimum pause is defined by Table 1.

Table 1 The selection signal sending device satisfies this standard and transmits the interdigit signal PT.
It is necessary to send BT.

Therefore, in the case of the pulse method, the pulse velocity signal Pv
A clock signal of 50 [msl or 100 [mS] is selected by S, and a magnification group is selected by selector 6. As a result, when the pulse speed V is 10 [PPS], the inter-digit signal generation circuit 2 generates a pause interval after the pulse type dial signal DP, that is, an inter-digit signal PT.
-900 [msl is inserted. In addition, the pulse speed
When PPS is 20 [PPS], an interdigit signal PT-450 [PPS] is inserted after the pulse type dial signal DP.

In the case of the DTMF system, a clock signal of 50[a+sl] is selected by the pulse rate selection signal PvS and is input to the presettable down counter 4. On the other hand, since the pulse/DTMF selection signal PDS is a signal for selecting the DTMF method, the selector 6 selects the magnification m. As a result, the DTMF system dial signal D
An interdigit signal 50 [msl] is inserted after B.

FIG. 6 is an explanatory diagram showing the definition of the make rate in the pulse type dial signal DP.

In the figure, the "!2" level is a make state, and the "H" level is a break state. The make rate M is the ratio of the period of the make state when the sum of the periods of the make state and the break state is 100%. The make rate M is also stipulated by the Ministry of Posts and Telecommunications Ordinance ``Terminal Equipment Regulations'' in Japan, and by FCC Part 68 in the United States, and the relationship between dial mode S, pulse speed ■, make rate M, and minimum pose is as shown in Table 2. become.

Table 2 For example, if the pulse speed V -10 [PPS] and the make rate M = 33 (%), then the interdigit signal PT after the pulse type dial signal DP is 600 [+
It is good to set it to ws1 or more.

Furthermore, the make rate M=39(%) matches the telephone exchanges in the United States, and the make rate M-33C%] matches the telephone exchanges in Japan.

[Problem to be solved by the invention]

By the way, according to the conventional example, the inter-digit signal PT of the pulse type dial signal DP has a pulse speed V − as shown in Table 1.
10 [PPS] 'P 20 [PP5I 41 It is generated based on the m-dependent pulse speed selection signal PvS, and the make rate M is not taken into account.

This causes the following problems.

■The length of the interdigit signal PT after sending the pulse type dial signal DP with a pulse rate of 10 [PPS] is set to 900 [msl] which is 300 [+ wsl longer than the minimum pause when used in Japan. For this reason, the selection signal sending time becomes long, especially when sending out a selection signal with a large number of digits.

■This increases the amount of time the telephone line is occupied.

The present invention was created in view of the problems of the conventional example, and includes the make rate as a factor in selecting the length of the interdigit signal inserted after the pulse type dial signal, and reduces the sending time of the selection signal. The purpose of the present invention is to provide a selection signal transmitting device that can shorten the time required.

[Means to solve the problem]

FIGS. 1(a) and 1(b) show a principle diagram of the selection signal transmitting device of the present invention.

The first device includes dial signal generating means and lO for manually generating dial data DD based on dial numbers O to 9 to generate a pulse type dial signal DP corresponding to the dial data DD; After being sent out to the telephone line, an interdigit signal P is inserted between the dial signal DP and the dial signal DP to be sent out next to the telephone line.
and an inter-digit signal generating means 20 for inserting a T, and the inter-digit signal DT has a pulse signal speed of the dial signal DP;
The second device is provided with a DTMF generating means 30 that generates a dial signal PB of the dial tone synthesis TMF type, and transmits the dial signal PB to a telephone line. The length of the inter-digit signal BT inserted after being sent out is different from the length of the inter-digit signal PT of the pulse type dial signal PD,
Achieve the above objectives.

[Effect]

According to the first device of the present invention, the make rate M specified in the Ministry of Posts and Telecommunications Ordinance "Regulations for Terminal Equipment, etc." and the US FCC Part 6B is incorporated into the control information, and the interdigit signal is inserted after the dial signal PB or DP. P.T.

Generating BT.

Therefore, the pulse velocity V 1 = 10 [1'PSl
, it is possible to realize an interdigit signal P T 2 =600 [msl] inserted after the pulse type dial signal DP2.

As a result, for the pulse type dial signal DP of the conventional example, the interdigit signal P T = 900 [msl] for the pulse speed V = 10 [PPS], and for the pulse type dial signal DP of the present invention, the pulse speed
1-10 tPPs] for the interdigit signal P T =
600 (compared to msl, if it is a 10-digit dial number, (900-600) X10 = 3 [5
It becomes possible to shorten the ecl sending time.

Further, according to the second device of the present invention, a DTMF generating means 30 is added.

Therefore, the inter-digit signal BT can be inserted after the DTMF type dial signal with good reproducibility as in the conventional case.

This makes it possible to have an advantage in terms of compatibility with conventional devices.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

2 to 4 are diagrams for explaining a selection signal sending device according to an embodiment of the present invention, and FIG. 2 shows a configuration diagram of a telephone communication device according to an embodiment of the present invention.

In the figure, IOA is an embodiment of the dial signal generating means 10, which includes a presettable down counter 11, a selector 12, a 1/100 frequency dividing circuit 13, a selector 14, and an FF (flip-flop) circuit 15. This figure shows a dial pulse generation circuit that outputs pulse-type dial signals DPI to DP3 consisting of the following.

The presettable down force counter 11 receives the dial data DD and counts its pulse clock φ.

The selector 12 selects a clock signal φ1 (1+ms) or a clock signal φ2 (0,
5 steel 3).

The 1/100 frequency divider circuit 13 inputs the count (1j (C1) of the presettable down counter 11 and calculates the clock signal φ1 (1 ms) or the clock signal φ2 (0,5 m
5) Divide the frequency of one of the clock signals to 1/100,
It outputs a clock signal φX of 100 ssl or 50 iw+sl. For example, make rate M1=3
Dial signal DPI of 9 [%] and M2 = 33 C%)
dial signals DP2 and I)P3 and MO=100 [
%] clock φX is output.

The selector 14 selects and switches between the dial signals DPI to DP3 for the make rate M1; 39 (%) or M2-33 (%) in response to the make rate selection signal MS.

The FF circuit 15 outputs dial signals DP1 to DP3 to the telephone line.

Therefore, the dial pulse generation circuit 10A inputs dial data DD of dial numbers 0 to 9, selectively converts the data DD into pulse type dial signals DPI to DP3, and further converts the data DD into pulse type dial signals DPI to DP3. It has a function to send DP2 or DP3 to the telephone line.

2OA is an embodiment of the interdigit signal generation means 20, and is an interdigit signal generation circuit comprising a pause period decoder 21, a selector 22, an FF circuit 23, and a presettable down counter 24.

The Bose period decoder 21 receives a pulse speed selection signal PVS.
The 0 selector 22 inputs the make rate selection signal MS and outputs the magnification selection signal As. The 0 selector 22 selects the magnification group, rcor rl, by the magnification selection signal AS.

The FF circuit 23 inputs the start signal SS and the count 4; li C2 of the presettable down counter 24, and outputs a counter control signal C3 to the presettable down counter 24.

The presettable down counter 24 receives a clock signal φ
X = 50 [1131 or 100 [+msl, magnification group, engineering] or rl, and dial signal DPI
~Optimal pause period PTO after DP3 = 90011
1s1. P T 1 = 700 [msl or P
T 2-600 [msl, P T 3-450 [nsl
is inserted.

Therefore, the interdigit signal generation circuit 20A has a function of outputting interdigit signals PTO to PT3 according to the make rate M after the dial signal DPI, DP2, or DP3 sent to the telephone line by the dial pulse generation circuit 10A. have.

These constitute a device that sends out a dial signal related to a dial pulse type selection signal sending device.

In this way, the make rate Ml-3 specified in the Ministry of Posts and Telecommunications Ordinance "Regulations for Terminal Equipment, etc., FCC Part 6B of the United States"
9 (%), M2 = 33 C%] as the make rate selection signal MS
The dial signal DPI- is incorporated into the control information as
Interdigit signals PTO to PT3 inserted after DP3 and PB
is being generated.

Therefore, the pulse speed V l = 10 [PPS]
, it is possible to realize an interdigit signal P T 2 =600[+131] inserted after the pulse type dial signal DP2.

As a result, for the pulse type dial signal DP of the conventional example, the interdigit signal PT = 900tmsl for the pulse rate V = 10 [PPS], and for the pulse type dial signal P2 of the embodiment of the present invention, the pulse rate V 1- Interdigit signal PT2= for 10 [PPS]
600 [If you compare it with msl, if it is a 10-digit dial number, (900-600) Xl0= 3
[It is possible to reduce the transmission time of 5 ecl.

FIG. 3 shows a configuration diagram of a selection signal sending device according to a second embodiment of the present invention.

In the figure, the difference from the first embodiment is that the second embodiment incorporates the DTMF method into the selection signal sending device of the first embodiment.

30A is an embodiment of the DTMF generation means 30, which includes a decoder 16, programmable frequency dividers 17a, 17b,
, D/A conversion circuits 18a and 18b, and a mixing circuit 19.

Here, the same reference numerals as those in the first embodiment have the same functions, so the explanation will be omitted.

In the DTMF generation circuit 30A, the decoder 16 binarizes the dial data DD corresponding to the dial numbers O to 9 in order to generate a high tone group and a low tone group. The programmable frequency dividers 17a and 17b divide the basic frequency φ3 to generate a digital treble group or a digital bass group.

The D/A conversion circuits 18a and 18b convert digital treble tones or digital bass tones into analog signals.

Reference numeral 19 denotes a mixing circuit which mixes the analog high tone group and the analog low tone group to generate a dial signal PB and outputs it to the telephone line.

The communication type (dial code) between pulse method and DTMF method is determined by the use of a selection signal sending device 7! Switched by Mr. i.

20B is an interdigit signal generation circuit, which is obtained by adding a multiplier field to the interdigit signal generation circuit 2OA according to the first embodiment, and a processing function for the pulse/DTMFI signal PDS to the pause period decoder 21. .

For example, when the DTMF method is selected for the selection signal sending device, the pause period decoder 21 outputs the magnification selection signal AS related to the magnification field to the selector 22 by the pulse/DTMF (i number PDS. , the selector 14 selects the clock signal φ2 (
0.5ms).

The 1/100 frequency divider circuit 12 divides the clock signal φ2 by 1/100.
The frequency is divided by 100 and the clock signal φX = 50 [ms
Generate l.

As a result, the interdigit signal generation circuit 20B inputs the clock signal φX-50[msl to the presettable down counter 24, and generates an interdigit signal l after the dial signal PB.
3T=50[ll5l is inserted.

In this way, the DTMF generation circuit 30A is added.

For this reason, as in the past, the dial signal P of the DTMF system
The interdigit signal BT can be inserted after B with good reproducibility.

This makes it possible to have an advantage in terms of compatibility with conventional devices.

FIGS. 4(a) to 4(d) are relationship diagrams between the make rate and the inter-digit signal according to each embodiment of the present invention.

In the same figure (a), the pulse velocity V 1 = 10 [PP5l, make 1M1
=39C%], pulse type dial signal DP
Interdigit signal PT1 inserted after I “700 [ms
l is shown.

Similarly, the same figure (b) shows the pulse speed V1=10iPPs]
, the interdigit signal P T inserted after the pulse type dial signal DP2 at the make rate M2=33 (%)
2-600 [msl is shown.

The same figure (c) similarly shows the pulse speed V2-20 [PPS]
, the interdigit signal P T inserted after the pulse type dial signal DP3 at the make rate M2=33 (%).
3 = 450 [msl is shown.

1ffi(d) indicates an interdigit signal BT=50 [msl] inserted after the DTMF dial signal PB by the selection signal sending device of the second embodiment.

In this way, the make rate selection signal MS, the pulse speed selection signal PVS and the pulse/r'TMF selection signal PDS
By manually selecting and selecting, the optimum inter-digit signal P T1 is generated after the pulse type dial signals DPI to DP2.
= 700[msl, P T 2-600[msl,
It becomes possible to insert the start sl at P T 3 = 450, and to insert the interdigit signal BT = 50 (ms) after the dial signal PB of the DTMF system as in the past.

In the embodiment of the present invention, the make rate is within the range specified by the Ordinance of the Ministry of Posts and Telecommunications, but it is also possible to switch between the make rates M1 and M2 when the pulse speed V is 20 [PPS], for example.

〔Effect of the invention〕

As explained above, according to the present invention, by introducing the make rate into the control information, it is possible to insert an optimal Bose spacing behind the dial signal of either the pulse method or the DTMF method.

Therefore, according to the present invention, it is possible to shorten the sending time of about 3 seconds for a pulse-type dial signal of a 10-digit dial number, compared to the conventional method.

This makes it possible to shorten the total transmission time of the selection signal including the single-digit interdigital dial signal.

[Brief explanation of the drawing]

1(a) and 1(b) are principle diagrams of the selection signal sending device of the present invention, FIG. 2 is a block diagram of the selection signal sending device of the first embodiment of the present invention, and FIG. is a block diagram of a selection signal sending device according to a second embodiment of the present invention, FIG. 4 is a diagram showing the relationship between make rate and inter-digit signal according to each embodiment of the present invention, and FIG. 5 is a diagram of a conventional FIG. 6 is an explanatory diagram showing the definition of a make rate in a pulse-type dial signal. (Explanation of symbols) 10, IOA... Dial signal generation means (dial pulse generation circuit), 2.20.20A, 20B... Interdigit signal generation means (interdigit signal generation circuit), la, 30.30a・=DTMF generation circuit (DTMF generation means), 3...50ss/100 Steel S clock All S clocks 1
．． 24...Presettable down counter, 12.1
4.22... Selector, 13... 1/100 frequency divider circuit, 15.23... FF circuit, 16... Decoder, 17a, 17b... Programmable frequency divider, 18 a
, 18 b-D/A conversion circuit, 19... Mixing circuit, 21... Pause period decoder, M, Ml, M2... Make rate, ■... Pulse speed, S... Communication type ( Dial code), DD...Dial data, O-9...Dial number, DP, DPI-DP3. PB...Dial signal, PT
, PTI-PT3. BT...Inter-digit signal, L...Telephone line, SS...Start signal, PvS...Pulse speed selection signal, PDS...Pulse/DTMF selection signal, B...Break rate, m, I! II, [2], cz...magnification, CI,
C2...Count value, φ1. φ2. φX...Clock signal, φ3...Basic clock, MS...Make rate selection signal, C8...Counter control signal, AS...Magnification selection signal.

Claims (2)

[Claims] (1) dial signal generating means (10) that receives dial data (DD) based on dial numbers (0 to 9) and generates a pulse type dial signal (DP) corresponding to the dial data (DD); After the dial signal (DP) is sent to the telephone line (L), the dial signal (D
P) and the dialing signal (
DP), and an interdigit signal generating means (20) for inserting an interdigit signal (PT) between the dial signal (DP), and the interdigit signal (DT) is a pulse signal speed (V) of the dial signal (DP). , a selection signal transmission device characterized in that the selection signal is generated based on a make rate (M). (2) The selection signal sending device according to claim 1 is provided with DTMF generating means (30) for generating a dial signal (PB) of a dial tone quality synthesis (DTMF) type, and the dial signal (PB) ) is transmitted to the telephone line (L) and then the length of the interdigit signal (BT) inserted is different from the length of the interdigit signal (PT) of the pulse type dial signal (PD). Sending device.