JPH0115264Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an improvement of a button telephone device consisting of a main device accommodating a central office line from a telephone office and a plurality of button telephones connected to the main device. It is.

[Prior art]

In general, in key telephone devices, when performing a hold operation on a central office line, there is a self-hold mode in which a response can only be made from the button telephone (hereinafter referred to as telephone) that has performed the hold operation on the holding station line, and It is possible to freely select between a normal hold mode in which a call can be answered from any telephone, and conventionally, the hold mode was selected using individual hold buttons on the telephone. .

However, in the past, the holding mode is selected using each individual holding button, which increases the number of buttons on the operation surface, impeding miniaturization, and causing drawbacks such as erroneous operations.

[Summary of the idea]

The present invention aims to eliminate such drawbacks of the conventional technology at once, and includes a storage means that alternately and repeatedly stores normal hold mode and self-hold mode in response to repeated operations of a hold button on a telephone; A determination means is provided for determining whether or not a response connection to the holding station line can be made based on the stored contents of the storage means in response to a request for acquisition of the holding station line from each telephone, and each holding mode can be freely selected using the same hold button. A highly effective key telephone device is provided.

〔Example〕

Hereinafter, details of the present invention will be explained with reference to figures showing embodiments.

Figure 1 is a block diagram of the main unit KSU.
The office lines CO ₁ to _{CO 5} are accommodated, and as the office line CO ₁ is shown as a representative, it is connected to this telephone TEL _n via a disconnector K _t , as well as a contact di for sending dial pulses, and a contact for a bypass. ds ¹ is connected to the matrix circuit for exchange connection via contact h for sending hold tone and contact ds ² for sending dial back tone, and when contact xp is turned on, the relay for loop current detection is activated.
Via L ₁ ~ L ₂ or directly, phone ST ₁ ~ _{ST 16}
It is designed to be connected to each telephone line by a separate communication line.

In addition, an incoming call detection circuit RDT is connected between the disconnector K _t and the contact di, and is used to detect a paging signal from the central office line, as well as a DP sending circuit.
The DPS controls contacts di, ds ¹ , and ds ² to send dial pulses, and contact h is provided with a hold tone sending circuit HTS and a hold tone generating circuit HTG. On-hold music, such as a melody, generated by the circuit HTG is sent to the on-hold music sending circuit HTS.
is sent to the office line via contact h, and contact ds ² is equipped with a dial back tone sending circuit DBS and a dial back tone generating circuit DBG. The dialback tone sending circuit DBS sends the dialback tone to the telephone ST which is in the outgoing state via contact ^ds2 .

On the other hand, processors such as microprocessors
A control unit CNT _n consisting of a CPU and a memory MM is provided, and receives the detection power of the incoming call detection circuit RDT, and also receives signals connected to the transmission control circuit SRC, the transmission circuit SRK, and each of the telephones ST ₁ to ST ₁₆ individually. It simultaneously transmits and receives data signals to and from the telephones ST ₁ to _{ST 16} via the wire, receives operation data from the telephones ST ₁ to ST ₁₆ , makes control decisions based on these, and then sends the data to the DP sending circuit DPS. , hold music sending circuit HTS, contact xp and corresponding relays XP
The driver DR ₁ drives the relays F ₁ - F ₅ corresponding to the contacts f ₁ - _{f 5} that connect the telephones ST ₁ - _{ST 5} individually to the central lines CO ₁ - _{CO 5} during a commercial power outage. Tone generation circuit that outputs extension dial tone, extension busy tone, waiting tone, extension ring tone, etc. in response to driver DR ₂ and telephones ST ₁ to _{ST 16} .
It controls the TSG and the intercom control circuit DPC, and also sends control data to the telephones ST ₁ to ST ₁₆ .

Note that the memory MM consists of a fixed memory ROM and a variable memory RAM.The fixed memory ROM stores instructions, which are executed by the processor CPU and performs various judgments and controls. The RAM is divided into multiple areas, and each area has central lines CO ₁ to _{CO 5.}
, the status of the telephones ST ₁ to _{ST 16} , the status of the extension link described below, etc., are sequentially stored, and the processor CPU performs the above-mentioned judgment and control while checking the stored contents.

In addition, extension links iTCM ₁ to iTCM ₃ are provided, and the transformers T ₁ to _{T 3} capacitors C ₁ to _{C 3} and the power supply E circuit supply power for communication during extension calls. The doorbell DRP is connected via the doorbell control circuit DPC and the transformer T ₁ to the extension link iTCM ₁ and the answering telephone
By turning on the contact xp corresponding to ST,
A conversation is to be made with the telephone ST that responded.

In addition, the driver DR ₂ is given the outputs of the contacts l 1 - l ₅ of the relays L ₁ - L 5, and the outputs of the contacts l ₁ - _{l 5} of the relays L 1 - L ₅ are given, and
Even if a commercial power outage occurs while ST ₅ is talking to the office lines CO ₁ to _{CO 5} , the contacts xp corresponding to the office lines CO ₁ to _{CO 5} will remain on for, say, 20 minutes due to the backup power supply. If the relays L ₁ - _{L 5} are operating due to the loop current from the station lines CO ₁ - CO ₅ , then these and the corresponding relays F _{1 - L 5 will be activated based on the outputs of the contacts L 1 - L 5} when a power outage occurs. _F5 will not be restored immediately.

Note that the output of the switch board SWB is given to the processor CPU, and
A switch in the SWB allows settings such as restrictions on incoming and outgoing calls for the telephones ST ₁ to ST ₁₆ .

FIG. 2 is a block diagram of the telephone set ST, in which the telephone line _Lt is connected to the telephone circuit via the switch ^HS1.
In addition to being connected to TKC, when on-hook, a telephone line L _t is connected to the amplifier A via the switch HS ¹ , the capacitor C _s , the varistor VR, the transformer T _s and the switch circuit SW ₁ , and the switch circuit SW ₁ is turned on and amplifier A is in operation, the speaker SP is activated by various tone signals or audio signals sent from the communication line L _t .
It has become a sound.

Note that a resistor R _{s is} connected to the input side of the capacitor C _s
A series circuit of AC and contact AC is connected in parallel, and when contact AC is turned on by the operation of relay AC, a DC loop is closed while the hook is on, making it possible to monitor when dialing on the hook.

In addition, an oscillator circuit OSC is provided that generates station line ringtone, extension tone ringtone, extension voice call notice tone, hold alarm tone, doorphone ringtone, etc., and the output of this is sent to amplifier A via switch circuit _SW2 . is given, switch circuit SW ₂ is turned on, and
When the amplifier A is activated, the speaker SP is made to sound using the various tone signals described above.

On the other hand, a control unit CNT _s consisting of a processor such as a microprocessor, memory, etc. is provided, and the main unit KSU is connected to the main unit KSU via a transmission circuit SRS and a signal line L _s .
By transmitting and receiving data signals with
The information from the keyboard KB with PBD and function key FUK and the switch HS ² is sent as operation data, and according to the received control data, the generation signal specification of the oscillation circuit OSC, the operation of the relay AC, the switch circuit SW ₁ ,
It controls the on/off status of SW ₂ , the operating state of amplifier A, and the blinking of the indicator light of the display circuit LDP.

Note that a DC power supply is superimposed on the signal line L _s by the power supply circuit omitted in Fig. 1, and the DC power supply separated by the transmission circuit SRS is connected to the power supply circuit PS.
After stabilizing at
Supplied as Vcc and Vss.

In addition, the keyboard KB's function keys FUK include the number of office line buttons corresponding to the office lines CO ₁ to CO ₅ , a single hold button to place the office line on hold, and the speaker SP for monitoring and rejecting incoming extension calls. There are a single monitor button, a single recall button for redialing, a single transfer button for transfer after holding the central office line, a single extension button for internal calls, etc. There is an indicator light for the display circuit LDP.

Fig. 3 is a flowchart of the control status by the processor CPU of the main unit KSU, where A shows normal processing, B shows interrupt processing, and A shows "initialization processing" when the power is turned on. After getting older, the operation data from each telephone ST ₁ to _{ST 16} is stored in the variable memory RAM, and "received data processing" is performed to make judgments and controls according to the data, and then the central office lines CO ₁ to CO ₅ are After checking the status of the switch button SWB and storing this data in the variable memory RAM, as well as performing "station line processing" that performs judgment and control accordingly, the switch button SWB setting and the clock circuit in the processor CPU are performed. Based on the time measurement, a "daytime/nighttime switching process" is performed that allows the central office lines _CO1 to _CO5 to be connected only to specific telephones _ST1 to _ST16 at night.

Then, by the timer in the processor CPU,
If the other party does not respond even if the ringing state continues for, for example, 30 seconds, "extension timeout processing" such as canceling the ringing state is performed, and if there is an incoming call from the doorphone DRP, "doorphone incoming call processing" is performed. ”, control is performed accordingly, and the steps after “Received data processing” are repeated.

In FIG. 3B, interrupt processing is performed at a cycle of 16.5 msec, and detection for the above-mentioned "daytime/nighttime switching processing" is performed using "TNGHT", and
Depending on “TCO”, contact xp control, station line CO ₁ ~
Dial pulse sending control for CO ₅ , central office line
After detecting incoming calls from CO ₁ to CO ₅ ,
"TST" transmits and receives data to and from the telephones ST ₁ to _{ST 16} , and then "TiTCM" transmits command data for causing the speakers SP of the telephones ST ₁ to _{ST 16} to ring intermittently with a tone signal, and After performing the timeout detection for the above-mentioned "extension timeout processing", "TDR" is used to detect the doorphone DRP used for the above-mentioned "doorphone incoming call processing".
Even if the incoming call from ST 1 is detected and the call from the doorbell DRP continues for up to 30 seconds, the phone ST ₁
~ If ST ₁₆ does not respond, timeout detection is performed to release the calling state.

In addition, transmission control circuit SRC and transmission circuit SRK
The transmission and reception of data signals with the telephones ST ₁ to _{ST 16} is carried out simultaneously at a cycle of 66 msec, and the control data and operation data are temporarily stored in the memory in the transmission control circuit SRC.
In “TST”, this memory and processor CPU
Each data transfer between the two is performed.

Figure 4 is a flowchart showing the details of central office line hold control, and when the “hold button operation” is performed on any telephone ST _o , the
The CPU determines whether the central office line is being captured according to the contents of the variable memory RAM, and if the answer is YES, the central office line is normally held, and any of the telephones ST ₁ to
In addition to setting the normal hold mode in which ST ₁₆ can also respond to the central office line, the "eye hold display" turns on the central office line indicator light corresponding to the central office line on the telephone ST _o for 5/16 seconds, for example. 1/16sec off, 1/16sec
After displaying the eye-hold display that blinks depending on the state of on or off for 1/16 seconds, the "on-hold display" will display the station line indicator light corresponding to the station line to other telephones for 1/2 seconds. A flashing hold display is displayed depending on whether it is on or 1/2sec off.

In addition, if "Located line on hold?" is NO, it is determined whether or not there is a line on hold in the telephone ST _o according to the contents of the variable memory RAM, and if YES is selected. According to the contents of the variable memory RAM, it is determined whether there is "self-holding", and if this is NO, the line is put on hold first or last by "Self-holding the holding station line" according to the contents of the variable memory RAM. A self-hold mode is set for the central office line in which only the telephone ST _o that has performed the hold operation can respond, and a "my hold display" is performed in which the hold indicator light of the telephone ST _o lights up.

Note that when the self-holding mode or the normal holding mode is set, data indicating these modes is stored in the variable memory RAM by "Self-holding the holding station line" or "Putting the line normally on hold".

Regarding the above, if the answer is YES to “Is there self-retention?”
Depending on the contents of the variable memory RAM, the telephone enters normal hold mode by “releasing self-hold for the relevant station line”, and by “stopping the My Hold display”, the telephone
Turn off the ST _o hold indicator.

Therefore, in response to repeated operations of the hold button, the normal hold mode and self-hold mode are alternately and repeatedly set, and corresponding data is stored in the variable memory RAM.

In addition, once each of the above steps is completed,
Move to “operation data processing from the next phone”.

Figure 5 shows the response to the hold station line or the station line.
This is a flowchart showing central line capture control for calling CO ₁ to CO ₅ , and any telephone
If you operate the off-hook and station line buttons, or the monitor button and station line button on ST _o , and the status becomes "station line acquisition request",
Processor CPU depending on the contents of variable memory RAM
determines “Is the station line on hold?”
If NO, also ask “Is the station line normally on hold?”
After determining this, if this is also NO, it similarly determines "Is the central office line IDLE?", and if this is YES, connects the telephone ST _o to the central office line by "acquiring central office line", and then After performing "my line display" by flashing the office line indicator light of the telephone ST _o , and after performing "busy display" by causing the office line indicator light to continuously light up for other telephones, Move to “operation data processing from the next phone”.

For the above, “Is the station line on hold?” is YES.
If so, it is determined whether the self-hold is based on the hold operation of the telephone ST _o using the “re-response?” function, depending on the contents of the variable memory RAM, and if this is YES, the “hold response” , variable memory RAM
After connecting the telephone ST _o to the holding station line again according to the contents of the call, the telephone ST _o 's hold indicator light is turned off by "stop my hold display".

However, if the "office line acquisition request" is from another telephone, the "response?" will be NO, and connection to the holding office line will be blocked.

Also, if "Is the local line normally on hold?" is YES, the "main line acquisition request" is sent to any telephone ST ₁ -
Even if it is from ST ₁₆ , a "hold response" is made and a connection to the holding station line is made.

Therefore, whether or not connection to the holding station line can be established is determined by "Reply?", and "Reply?" is YES.
Only in this case will the telephone that made the "main line acquisition request" be connected to the holding office line.

Figure 6 is a flowchart of automatic hold control. In this case, if the extension button is operated while the station line is being acquired, the station line being acquired will be put on hold, so the operation of the hold button is omitted. can do.

In other words, when you perform an "extension button operation" on any telephone ST _o , the message "Located line?" appears.
If is NO, it will be “extension capture or incoming call response”,
The system enters the state of calling another telephone or talking with another telephone, but the processor CPU displays "Located central line?" depending on the contents of the variable memory RAM.
If it is determined to be YES, as in Fig. 4, the station line is placed on normal hold, the telephone ST _o is made to display the eye-hold display, and the other telephones are then displayed on hold. Let them do it.

Then, depending on the contents of the variable memory RAM, it is determined whether there is another self-holding station line, and if the answer is NO, it is set as "the holding station line is self-holding" as in Figure 4, and then the telephone is sent to ST _o. Displays "My Hold", switches from normal hold mode to self-hold mode, and transitions to "extension capture or incoming call response" for transferring to or receiving transfers from others. .

However, if "Are there any other self-hold lines?" is YES, the normal hold mode remains.

Note that when the self-hold mode is set, when the extension button is operated on the transfer destination telephone, the self-hold mode is canceled, so that the transfer destination telephone can capture and respond to the holding station line.

Of course, the self-hold mode can also be canceled by operating the hold button on the telephone ST _o .

Therefore, “Are there any other self-holding station lines?”
If NO, the system automatically shifts to self-hold mode and prevents the holding station line from being captured by a telephone other than the transfer destination.

FIG. 7 is a block diagram summarizing the configuration of the present invention. When the hold button SW _h of the telephone ST _a is repeatedly operated, the variable memory RAM and the corresponding memory MEM are set to the normal hold mode. The self-holding mode is alternately and repeatedly stored, and based on the stored contents, the processor CPU and the corresponding judgment unit JUD judge whether or not the telephones ST _a and ST _b can respond to the holding station line CO _o . Contact xp and the corresponding connection CN respond according to the judgment output of this, and when the memory MEM stores the self-hold mode, only the telephone call circuit TKC of the telephone ST _a is connected to the holding station line CO. _memory
When the MEM stores the normal hold mode, it is assumed that the telephone ST _a or ST _b is connected to the holding office line CO _o .

However, in FIG. 1, the number of central office lines CO ₁ to _{CO 5} and the number of telephones ST ₁ to ST ₁₆ may be determined depending on the conditions, and the number of main unit KSU and telephones ST ₁ to _{ST 16} may be determined according to the conditions. It is also possible to use a common connection between
Each button on the phone ST ₁ to ST ₁₆ is non-locking,
In addition, the configurations shown in Figures 1 and 2 can be arbitrarily selected according to the situation, and in Figures 3 to 6, the steps may be replaced or unnecessary depending on the conditions. Various modifications are possible, such as the possibility of omitting this step.

[Effect of idea]

As is clear from the above explanation, according to the present invention, the normal hold mode and the self-hold mode can be selected alternately and repeatedly using a single hold button, so the number of buttons on the operating surface of the telephone is reduced. This allows the telephone to be made smaller and prevents erroneous operation, which provides great benefits in various button telephone devices.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Figure 1 is a block diagram of the main device, Figure 2 is a block diagram of a telephone, and Figure 3 is a block diagram of a telephone.
The figure is a flowchart of the control status by the processor of the main device, Figure 4 is a flowchart of station line hold control, Figure 5 is a flowchart of station line acquisition control, Figure 6 is a flowchart of automatic hold control, and Figure 7 is a flowchart of station line hold control. The figure is a block diagram summarizing the configuration of the present invention. CO ₁ ~ _{CO 5} ......Station line, ST ₁ ~ ST ₁₆ , ST _a , ST _b
...Telephone (button phone), xp...Contact, CPU
...Processor, MM, MEM...Memory, SRC
...Transmission control circuit, SRK, SRS...Transmission circuit,
KB...Keyboard, FUK...Function key, CNT _s ...Control unit, SW _h ...Hold button,
JUD...judgment section, CN...connection section, CO _o ...holding station line.

Claims (1)

[Scope of utility model registration request] A self-hold mode that allows responses only from the key telephone that performed the hold operation on the holding station line,
In a button telephone device in which a button telephone can freely select between a normal hold mode in which a call to a holding station line can be answered from any button telephone, the normal hold mode and self-hold can be selected in response to repeated operations of a hold button on the button telephone. a storage means for alternately and repeatedly storing the mode and a holding station line; and a judgment for determining whether or not a response connection to the holding station line can be made based on the memory contents of the storage means in response to a capture request for the holding station line from each button telephone. What is claimed is: 1. A pushbutton telephone device comprising: means for selecting one of the hold modes using the same hold button.