JPS61295797A - Key telephone set - Google Patents

Abstract

PURPOSE:To prevent the fail of connection or an erroneous connection by outgoing a memory dial fitted respectively even when line wires having different classifications or different kinds of conditions are accommodated. CONSTITUTION:A CPU 42 performs the transmission/receiving of a data signal and transmits operation data represent the status of the transmission/receiving according to the output of a keyboard (KB) 43, on the other side, it controls a display light group (PL) 44, a character display device (DP) 46, SWs 32, 34 and 35, an MPX 38 and a signal generating circuit (TSG) 39, etc. according to a control data received from a main equipment. Therefore, the main equipment transmits a dial data to a key telephone set ST corresponding to the memory dial outgoing operation of the ST and following this, a dial outgoing by an MF signal is performed from the TSG 39 of the ST. Also, when a pulse signal used, the main equipment performs the same memory dial outgoing.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a button telephone device equipped with a memory dial function. It is common to perform a memory dialing operation after acquiring an idle line by operating a line key corresponding to the line or automatically acquiring an idle line by operating a speaker key while on-hook.

[Problem that the invention seeks to solve]

However, when accommodating a mixture of telephone lines such as central office lines and lines from private branch exchanges, pulse dial lines and dial lines using composite audio frequency signals, or lines from different telephone companies, empty lines are randomly created. If a memory dial call is made after capturing the call, problems may occur, such as the contents of the dial number differing depending on the type of line, system, etc., or an indication that connection is impossible or incorrect.

[Failure to solve the problem]

In order to solve the above-mentioned problems, the present invention is configured by the following means. That is, it accommodates a plurality of telephone lines and also stores a dial number for memory dialing in accordance with a registration operation of a button telephone. In a button telephone device, which is equipped with a main device provided with a memory for storing data, and dials a telephone line according to a dial number stored in the memory in response to a memory dialing operation of the button telephone, a predetermined procedure is performed during a registration operation. Means for storing a corresponding line number together with a dial number in a memory in response to an operation of a line key corresponding to a telephone line; and means for capturing the information.

[Effect]

Therefore, if a line key is operated according to a predetermined procedure during the registration operation, the corresponding line number will also be stored in the memory, and in response to the memory dial dialing operation, the telephone line will be captured according to the line number in the memory. Following this, a memory dial call is made.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to figures showing examples.

Figure 1 is a block diagram of the main unit (hereinafter referred to as KSU) 1, and an external line 21 such as a central office line or telephone line from a private branch exchange.
~2n are accommodated, and these are shown as a representative of the external line 11, relay contacts (14-1, ds-1, transformer LT
1 and relay contact ds-1, a communication path switch (configured by multiple cross points such as analog switches)
Hereinafter, the external links LC1 to LCfi and internal links Li1XLi2 are connected to the cross point and transformer T.
tx to Ttm, a button telephone (hereinafter referred to as S
T) ST+-8Tm is connected to each pair of communication lines 31-3m, and each ST+-STm is connected to a data transmitting/receiving circuit via a pair of signal i4+-4m transformers TS+-yTsm. (hereinafter referred to as DSR) 12.

Furthermore, an incoming call detection circuit (hereinafter referred to as RDT) 13 is bridge-connected to the outside lines 21 to 2n via a capacitor C1, a resistor R1, and a contact d3-1, thereby detecting the arrival of a calling signal. Then, contact di-1
, ds-1, ds-1 relays DI-1, DS-
1, a drive circuit (hereinafter referred to as 1 RV) 14 is provided, and each relay DI-1 to DI-1 corresponding to the outside wires 21 to 2n is provided.
DI-n, DS 1 to DS-n are each driven by 1, and a communication path switch control circuit (hereinafter referred to as TRC) 15 is provided for TR811, thereby controlling each link LCI to LCn. )Li 1, Li 2
It controls each crosspoint of the network and performs exchange connections.

On the other hand, the main processor (hereinafter referred to as CPUm) as each means
21 and a sub-processor (hereinafter referred to as CPU 5) 22 are provided, and a CPU 522 controls the DSR 12 to
The received operation data of each ST is stored in a variable memory (hereinafter referred to as R) common to CPUm21.
AM) 23 and pR by CPUm21
The control data for each ST stored in the AM 23 is read out and transmitted to each ST.

The CPU, CPUm21, and CPU522 are each RAM.
23 and a fixed memory (hereinafter referred to as ROM) 24, the data processing is performed by a stored program type operation in which programs stored in these are executed. Control is performed while accessing data to the internal memory and RAM 25.

Note that the ROM 24 stores programs and data other than those stored in the internal memory of the CPUm21, and this also restricts the operation of the CPUm21.

Therefore, the CPUm21 operates the DRV1 according to the detection power of the RDT13 and the operation data based on the operation of each ST.
j17) Performs the exchange connection under the control of TR811 via the control unit and TRCl3, and also connects the CPU522 and DR.
812, control data is sequentially and repeatedly transmitted to each ST to control each ST's display using indicator lights, indicators, and sounds, as well as telephone communication.

In addition, IJ-D I-1 to D via DRV14
By driving I-n, the primary windings of the transformers LT+ to LTn close a DC loop for the external wires 21 to 2n,
In addition to acquiring an outside line or holding an outside line, it also sends out a dial pulse after acquiring an outside line. At this time, relays DS-1 to DS-n are also driven at the same time.
Contacts ds-1 to ds n Yoshicapacitor CI-C
n, resistors R1 to Rn are connected in parallel to contacts di-1 to din for spark extinguishing, while contacts ds-1 to ds-
Connect the external link LC1%LCn to the side where high resistance value resistors R11 to Rxn are inserted to the secondary windings of the transformers LTt to LTn, and click when sending dial pulses. This prevents sound from being given to each ST as a high level.

In addition, each secondary winding of transformers LTI-LTn and the primary windings of transformers Ttl to Ttm, Tsl to TsH,
For example, +5V power supply V1 is applied for the analog switch of TR811, and transformers Tt+ to Tt
For example, a +27V power supply v2 is applied to the neutral point of the secondary winding of transformer T81 to TSm, while the neutral point of the secondary winding of transformer T81 to TSm is connected to the power supply return path.
Phantom power is being supplied to the

FIG. 2 is a block diagram of ST5, showing the primary winding neutral point of transformer Tl to which communication line 3 is connected, and the primary winding neutral point of transformer T2 to which signal line 4 is connected. A power supply circuit 31 is connected between the transformer TI and the secondary winding of the transformer TI. , via a switch circuit (hereinafter referred to as 5W) 32 such as an analog switch,
The inverting input of the differential amplifier (hereinafter referred to as DA33) is connected, and the DA
The non-inverting input of DA 33 is connected, and the output of DA 33 is given to receiver R, and is also given to speaker sp via 5W 35 and a power amplifier (hereinafter referred to as PA) 36, thereby forming a receiver circuit. O Also, the output of the transmitter T is the preamplifier (hereinafter referred to as HA) 3
γ and transmission level setting are applied to inputs 1 to 4 of a multiplexer (hereinafter referred to as MPX) 38 via resistors R33 to R36, each having a different resistance value, and various tone signals and dial signals. A signal generation circuit (hereinafter referred to as MF) that generates a composite audio frequency (hereinafter referred to as MF) signal for
The output of TSG) 39 is applied to the input cuff of MPX38 via capacitor C31 and resistor R32.
The output of MPX38 is amplified by a transmitter amplifier (hereinafter referred to as TA) 40, and then sent to the telephone line 3 via resistor R37 and transformer TI. A speech circuit is constructed.

The output of TS039 is also given to input B of 5W32, but when the MF multiplied signal is sent from TSG39, 5W32.34 selects input A and
Since B selects the entry cuff, an MF multiplied signal is sent to the telephone line 3 at a predetermined level via TA40, while DA3
5W32.34 is applied to the receiver R as a low-level sidetone, and during a call, 5W32.34 is applied to the input A.
, and the MPX 38 selects inputs 1 to 4 according to the transmit level according to the call conditions, so the transmitted voice is treated in the same way.

In addition, when sending out a tone signal for calling etc. from TSG39, 5W32.34 is input B, and 5w35 is input A.
is selected, and MPX38 selects inputs 5 and 6, so the output of TS039 is given only to PA36 and receiver R, and speaker sp sounds. On the other hand, the secondary winding of transformer T2 has DIIS 41 is connected, and through this, a processor (hereinafter referred to as CPU) 42, which is equivalent to CPU 522, sends and receives data signals.
In response to the output of a key fob (hereinafter referred to as KB) 44 equipped with various function keys including dial keys and hold keys, operation data indicating these conditions is transmitted.
According to the control data received from KSUl, the indicator light group (hereinafter referred to as PL) 44, the indicator using the character indicator (
Below, Dip) 46, SW32.34.35, MPX3
8, TSG39 etc. are controlled.

In addition, a reset circuit (hereinafter referred to as R
ES) 45 is provided, by which the CPU 42 is initialized.

Therefore, tone signals such as an incoming external call, an incoming internal call, and a hold alarm are sent from the speaker SP, and the indicator light in the PL44 lights up correspondingly. dial by pulse signal or M by TSG39
The F signal is dialed and the other party responds,
Calls can be made freely using the transmitter T and the receiver R.

In addition, extension calls are also made by dialing, but it is also possible to make calls using tone signals and calls using voice, as well as memory dialing using MF signals, busy calls, and amplification of receiving calls using speaker SP. Guinon telephone equipment is designed to provide the types of functions that are often required.

In addition, the TSG39 responds to serial data SD and clock pulse CLK from the CPU 42, while the reception output DR of the DR841 is
It is given to the interrupt input INT of 42 and is treated as valid only when the CPU 42 cancels the prohibition of accepting interrupt input. Data is transmitted.

FIG. 3 is a flowchart of the steady processing by the CPUm21 of KSU1, in which after performing "initialization" 101, processing "111" of 1X received data from each ST, and 6 incoming calls in response to incoming calls from outside lines 21 to 2n. Perform processing 112 and perform timeout processing 12 using the time amplifier of each timer configured in CPU m21.
1 and ゝゝゝSuspension alarm processing〃122 are performed, and then steps 111 and subsequent steps are repeated.0 Fig. 4 is a flowchart of the interrupt processing by the CPU m21. Pulse sending process ``201'' is performed, then 1 external call incoming detection process 202 is performed using the detection power of R1) T13, ``extension timer process 211'' and ``Holding fraud timer process 212'' are performed. , for each ST1 to STm,
After storing the control data in the RAM 23 using the transmission data controller)//221, a command is given to the CPU 522.
Data transmission/reception 222 with the 5T is performed for each of the STI to STm.

5 to 8 are flowcharts showing the details of step 111, and FIGS. 5 to 7 are processing states during memory dial registration operation, and FIG. 8 is processing status during memory dial dialing operation. These are executed in any one of the figures each time the ST transmits operation data in response to the polling code transmitted from KSU1.

Note that the registration operation by the ST is performed by operating each key in the KB 43 according to the following predetermined procedure.

(1) Memory key M operation (Start registration) (2) Line key Ln operation (n: number corresponding to outside line) (3) Dial key D operation (2-digit code number for speed dialing) (4+ Dial key D operation (Dial number) (5
) Memory key M operation (Registration completed) Therefore, in Fig. 5, ' Received data ? 〃301 is Y (Y
ES), is the content the memory key 11M operation?
If it is N (No) in step 302, N other received data processing 303 is performed, but in response to Y in step 303, is the N ST idle based on the data in the memory? 〃31
1, and if it is Y, the relevant ST is in the on-hook state, not in the receiving and amplifying state, and the registration starts, so 312 is performed.

If step 311 is still N, a flag (described later) indicates 1. Is the ST answer currently being recorded? ” 321, and if this is Y, the registration is completed. 1 Line number, dial number/registration storage 331, for example, in the registration area of the RAM 25, each address is sent from the buffer area described later to the address corresponding to the code number. The number is stored, and the registration state is reset by clearing a flag, which will be described later, through )) registration end processing 332.

On the other hand, when step 321 is N, N other processes 34
1, then process the received data from the primary ST.”
342.

FIG. 6 shows the process corresponding to the operation of the line key Ln, and similarly to steps 301 and 302, is there received data?
"401, ' Ln operation?" 402 is determined, and in response to N in step 402, "other received data processing" 403 is performed as in step 303, whereas in step 402
If it is Y, the flag in step 312 is used to determine whether "Registration is in transit?" 411, and if it is Y, the line number is stored in the buffer area of the RAM 25 by "Storing line number/buffer area" 412. Action, step 41
When 1 is N, ``other outside line processing'' 421 is performed, and then, as in step 342, the process moves to ``processing received data from next ST'' 422.

FIG. 7 shows a process corresponding to the operation of dial key D,
Similar to steps 301 and 302, is there any received data?
I431, ND operation? If step 432 is N, other received data processing "433" is performed as in step 303, but Y in step 432 is determined.
According to step 411, “Registration in progress?”
Determine I441 and if it is Y, step 312
Correspondingly, clear 1 registration transient flag 442, set 9 registration flag 443, and then
Send confirmation toneッ444, dial tone indicating that registration is in progress, etc.
It is sent from SG39.

Further, if step 441 is N, step 443
Is J J 11 registered in the flag? 〃Judging 45t,
In response to Y of this, execute ``452 to stop sending confirmation sound'', count the number of operations of D to the counter in CPUrn 21, and if it is Y of I461, 9 error sounds will be sent. 462 causes the υTSG39 to send out an alarm sound, etc., and then performs "registration error processing" and clears the contents of the buffer area, etc., while step 461 is N. Storage 471 is performed in the same manner as step 412.

On the other hand, if step 451 is also N, N and other dial processing 472 is performed, and then, as in step 342, the process moves to reception data processing from the Nth ST 473.

Therefore, both the line number and the dialed number are
It is stored in the registration area of M25 at an address corresponding to the code number.

Note that the code number is determined depending on the type of speed dialing, automatic dialing, etc., and automatic dialing uses a single digit operation of a dial key or operation of a specific key.

FIG. 8 shows a case where the memory dial dialing operation is performed (same as step 301) \ Received data?
I501 becomes Y, and the content of this is code number dial key 1D operation? "If N of 502, step 30
Similar to step 3, N other received data processing 503 is performed, but when step 502 is Y, as in step 311, ``Is the ST idle?'' “Judging 511,
According to this Y, enter 2 digits on the dial?I512 is Y
Accordingly, perform the N on-hook dial mode setting "513, and check "Is there a line number in the N registration area of RAM 25?" 521 according to the code number. If this is Y, check "Is the line empty?" I522 is judged according to the data in the memory, and in accordance with Y of this, the line is captured (531), and the dial number in the RAM 25 is called "Memory dial call" (532). When i or 522 is N, N
Is there an empty line available for outgoing calls to the ST? 〃By s41, each S
When the permissible calling lines for each T are determined, it is checked whether or not there is an idle line among them according to the data in the memory, and assuming that this is Y, the corresponding idle line is captured〃542
is performed, and the process moves to step 532, but step 54
In response to 1ON, the busy tone is transmitted from the TSG 39 to the N corresponding ST via busy tone transmission 543.

On the other hand, if step 511 is N, is the A1 ST connected according to the data in the memory? ” 551, and if it is N, dial 2 as in step 512.
Digit input? "552 is judged, and the first digit number buffer area is stored" (553) in accordance with N.

Note that if step 551 is Y, the ST in question has already been connected to an outside line or an extension line, and is not a memory dial call. The process moves to received data processing 562.

In contrast, in automatic dialing, a 2-digit operation of the speed dial key D is performed, whereas in automatic dialing, a 1-digit operation of the dial key D is performed, and a specific key operation is performed accordingly. .553 etc. will be changed.

Therefore, if a line number is registered, a memory dial call will be made when this outside line is empty, whereas if a line number is not registered, an empty line will be dialed from an outside line that is allowed by the ST that performed the calling operation. is automatically captured, and a memory dial call is made accordingly.

FIG. 9 is a flowchart of the steady processing by the CPU 42 on the ST5 side. After performing "initialization" 601 by the RES 45, the received data signal D
The interrupt input given by R is canceled by "INT prohibition release" 6o2 to release data import from the prohibited state, and 5 reception is completed by interrupt processing? If 611 is Y, perform N reception data processing 612. , Is there one operation input? 〃621
After performing "transmission data creation" 622 for the transmission data signal Ds in response to Y of , the timer in the CPU 42 is set to elapse the cycle Nt1 of, for example, 80 m5ec? ”631
, and as this becomes Y, again “INT
The prohibition is canceled (632), and steps 611 and subsequent steps are repeated.

FIG. 10 is a flowchart showing the details of step 612. “γ
If 01 is Y, is this content 9 transmission level data?
〃Judge 711 and control NMPX according to Y of this〃
Step 712 is performed to select the corresponding one among inputs 1 to 4, and step 711 is N and tt 1°-n data?
〃When γ21 is Y, ``tone processing〃722, 9
) - Store the contents of the N signal in the memory, and if step 721 is N, the N indicator light data? 〃When γ31 is Y, “
Indicator light processing〃732 stores the indicator light control status of PL44 in the memory, and step 731 indicates N and ゝゝDial data? "If 741 is Y, 9 dial processing〃7
42, the dial number for memory dialing is stored in the memory, and step 741 is N and the N display data? 〃
When 751 is Y, PP46 is displayed due to “display processing” 752.
Stores the displayed contents in memory.

FIG. 11 is a flowchart of interrupt processing by the CPU 42.
1 exchanges data with the DR841, and the hook switch H8 and KB43 are detected by the operation detection process 812.
Check the output of the PL44, and send out a tone signal using the λ tone sending control 821 according to the contents of the memory. Similarly, the indicator light control 822 causes the indicator light in PL44 to turn on or blink if not yet. The light goes out, and the 5MF signal is sent out using the dial sending control 831 corresponding to the contents of the memory, and the DP4 signal is sent out using the same 9 display control 832.
6. Define the display status.

Therefore, in this example, in response to the ST's memory dialing operation, the KSUI transmits a dial key to the ST, and in accordance with this, the ST's TSG39 dials using the MF multiplier signal. , in the case of a pulse signal, a memory dial call may be made from the KSUI in the same way.

In this case, even if lines of different types and conditions are accommodated as external lines 21 to 2n, by registering each line number, memory dial calls will be made that suit each line number, and there is definitely a risk of connection failure or incorrect connection. be blocked.

If you perform an X-memory dialing operation while on-hook, a suitable line will be automatically captured from outside n2i to 2n and a memory dialing operation will be made, so the operation is extremely simple and there is a risk of erroneous operation. does not occur.

However, it is clear that even if a memory dial call operation is performed after going off-hook, it can be processed in the same way.
It can be applied to various types of memory dial dialing based on this.

Note that the same effect can be achieved even if each signal is sent from KSUl instead of using TSG 39, and each means may be configured as a circuit separate from CPUm21.

In addition, the configurations in FIGS. 1 and 2 can be arbitrarily selected depending on the situation, and in FIGS. 3 to 11,
Depending on the conditions, various modifications can be made, such as replacing the steps, replacing them with other equivalent steps, or omitting unnecessary steps.

〔Effect of the invention〕

As is clear from the above explanation, according to the present invention, even when accommodating outside lines of different types and various conditions, memory dial calls can be made that suit each line, and there will be no disconnections or erroneous connections. Remarkable effects can be obtained in various key telephone devices that accommodate outside lines.

[Brief explanation of the drawing]

The figures show embodiments of the present invention, in which Figure 1 is a block diagram of KSU, Figure 2 is a block diagram of ST, and Figures 3 to 8 are KSU block diagrams.
01...KSU (main unit),
21~2n...Outside line, 3, 31~3m...Talking line, 4, 41~4m...Signal line, 5...
ST (button telephone), 11...TR8 (call path switch), 12.41...DSR (data transmission/reception circuit), 13...RDT (incoming call detection circuit), 14...
・・DRV (drive circuit), 21---- CPUm (main processor), 22ee-・CPU5 (sub-processor)
, 23,251...RAM (variable memory), 24-
--- ROM (fixed memory), 32, 34.35 -
...SW (switch circuit), 33...DA (differential amplifier), 38...MPX (multiplexer), 39...TSG (signal generation circuit), 42φ...
・CPU (processor), 4311... Cloud KB (keyboard), 44...PL (indicator light group) DI-1 to DI
-n, DS-1~DS-ne・−・ri
Ray, LT+, Tt1~Ttm, Tsx~Tsm
, Tt , T211 +1 @ @ transformer, R31-R
38...Resistor, H8...Hook switch, R
...Telephone receiver, T-ψ...Transmitter, sp...Speaker.

Claims (1)

[Claims] A main device is provided with a memory that accommodates a plurality of telephone lines and stores a dial number for memory dialing in response to a registration operation of the button telephone, and stores a dial number in the memory in response to a memory dialing operation of the button telephone. The button telephone device dials the telephone line according to the dialed number, and when the line key corresponding to the telephone line is operated according to a predetermined procedure during the registration operation, the corresponding line number is dialed. A button telephone device comprising: means for storing the telephone line number in the memory together with the telephone number; and means for capturing the telephone line whose line number is stored in the memory in response to the memory dial dialing operation.