JPS5921160A - Display device for telephone set - Google Patents

Abstract

PURPOSE:To prevent a wrong call, by displaying both the duration of a call and the telephone number of a called subscriber. CONSTITUTION:The telephone number data obtained by a dial operation is stored successively in a memory 19 by a control circuit 16. At the same time, a display device 17 is cleared to display successively the stored telephone number by one digit. When a called subscriber gives an answer, the circuit 16 resets once the counted value of a call duration counter 18 to 0 and then starts the counter 18 again. Then the counted contents of the counter 18 are displayed in place of the telephone number data displayed at the display device 17.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a display device attached to a telephone,
In particular, the present invention relates to a display device for a telephone call machine that displays call times, call times, and telephone numbers.

[Technical background of the invention]

Conventionally, display devices attached to a telephone set include a call time display device and a telephone number display device '4! needle. Yes, the former. Noto Q & 8! As an interval display device,... ．． ．． ．． ．． 4a
=． A device that starts counting in a counting circuit by detecting the polarity reversal of the telephone line current caused by a gate caller tm* using a relay, etc., and displays this, or a device that displays this, or a counting circuit manually. of. There are simple devices that start counting and display it.

The latter telephone number display device is a device that displays the called party's telephone number data obtained by the dial operation. These display devices are very convenient for the user to use the telephone.

[Problems with background technology]

However, since both of the above-mentioned optical display devices have a single display function, that is, a function to display only the call time or a function to display only the call number, it is difficult to recognize the call time as well as the telephone number. I can't be sincere. Therefore, if the call time cannot be displayed, the
There is an inconvenience that if the called party does not answer, it is not possible to confirm whether or not the person is dialing the wrong number.

Also, phone number. 1. ! Mu: Table. If the information cannot be displayed, please confirm the exact number of calls made at the time of the call. ．． Wholesale of time. Do you end up making unnecessary long phone calls because you can't do anything about it? There is a risk that this may be disadvantageous in terms of billing.

? In order to eliminate these inconveniences, simply call time 1.
11. ＾Display function and phone number display function? A display device with these functions can be considered by combining the two functions, but such a display device requires two displays. Money is economically disadvantageous. In addition, it is sufficient that the phone number is displayed only when necessary, and if the regular phone number is displayed, it becomes an eyesore and increases power consumption. ]．・? The present invention has been developed by paying attention to the above-mentioned circumstances, and is capable of accurately displaying the talk-saving time and displaying the called party's call only when necessary. Story? The purpose of the O. ．． ．． l. :． [Summary of the Invention] Therefore, the present invention provides a dial operation function on the display cover for displaying the call time. It was a great phone call when I was working on it. An honorary title... The phone number display switch operation is too busy memorizing it. QL. It is something that ．． [Embodiments of the invention] Below. Below, the heather invention will be explained in detail with reference to the drawings, Part 1
．． The figure is ↑Block A showing an embodiment of the invention. and
1 is a phone. ．． Machine body circuit, 24. ．． ,3 is. telephone line,
．． ．． ．． 4 and 5 are light emitting diodes, 6 is a hook switch,
7 is a dial key button, 8 is a snow re-dial button switch, 11 is a switch that works with the hook switch 6, 12,134 photo 2 registers, person 4 is a hook switch status detection circuit, . 15 is a polarity reversal detection circuit;
16 is a control circuit, 17 is a table. Indicator,. 18 is a call time counter, and 19 is a memory. It is. ．．
When lifted, hook switch 6 is activated. It becomes on state (. off-hook state) and works in conjunction with it. Tesui. Tutsi 1
1 is also turned on. The detection circuit 14 is connected to this switch 11.
state of. is detected, and an off-hook state detection signal is output to the control circuit 16. Then, the control circuit 16 causes the call time counter 18 to start counting, and causes the display 17 to display the counting contents. End. Story. To. edge. Then, when the handset is put down, the hook turns off. ．． Tutsi 6. but. -!
centre. Hayashi. p (on-hook state). Detection Q Police. ．． 1,. ．． 、． , 18 sends an on-hook bond detection signal to the control circuit 16. Output. do. ．． Then, the control circuit 16 is turned on. Moaning time counter. Stop l8's drunkenness. Stopper, indicator 17. ．． To. So. The timer at the time of stoppage. The continuation time is 1 temporary prison threshold T
3 interval table. I'll show you. this. Yo. Sea urchin. When you receive a call, please click here. hand? 11 is the call time. is demonstrated.

Next, at Kakunobuji. Regarding the display, see Part 2, Figure 3. See p. ．． 、；． jzgaya explanation page. Ru. Figures 2 and 3 are. Timing chart for sending this practical example. ．． Aya with the illustration of the title and the award. When making a call (even if
．． ? ). The handset is lifted. The same thing as when receiving a call. The operation repair call time counter 1.8 starts counting. do. Control # circuit: 16. , during a predetermined time T,. For dial operation. Yo. Excellent. ′! If no IL talk number data is input: A blank display appears on the display 11. (...No display.)
for a specified period of time. T, call time counter after elapsed. 18 counts are displayed. ．． Is this display time off? This is the elapsed time from the call, that is, the elapsed time until the called party answers. After that, the telephone number data can be retrieved by dialing (direct number dialing, speed dialing, redialing, etc.). When the evening is obtained, the telephone circuit 1 sends a selection signal based on this telephone number data to the telephone lines 2 and 3, and also outputs this telephone number data to the control circuit 16. The control circuit 16 inputs each digit. The phone number data is sequentially stored in the memory 19, which is a memory for re-dialing, and the time display on the display 170 is cleared.
The stored telephone number data is sequentially displayed one digit at a time.

The polarity reversal detection circuit 14 must also output a polarity reversal detection signal during a predetermined time period T2 after all the telephone number data is obtained by dialing (after the last digit's telephone number data is obtained). For example, the control circuit 16
The telephone number data is continuously displayed on the display 17 for a period of 2, and then the elapsed time is displayed again.゛：・Togode? ,
During this time T2 or the elapsed time: When the called party answers during this period of time T2, the telephone line is connected to the telephone line 1 due to the operation of the exchange.
One polarity of the currents 2 and 3' is reversed. Then? O7'
If the light emitting diode 4 was lit by the hook, would it have been lit first by the polarity reversal? light emitting diode 4
goes out and light emitting diode 5 lights up? Sutani. As a result, the outputs of phototransistors 12 and 130 are respectively ? change,
The polarity reversal/detection circuit 15 is based on this photodetector 12.
．． Is the polarity reversal detection signal based on the change in power of 13? output the number? Ru. Control circuit 16? Based on this polarity reversal detection signal, the counting contents of the telephone number counter 18 are temporarily reset to zero and counting starts again, and the call time counter 18 is displayed instead of the telephone number data displayed on the display 17. 18(7) Displays the counted contents; This display time is the accurate call time from the called party's response.

After that, the switch for displaying the episode number that is not displayed during the call (by the way, again)゛? Ikiru: Buttons 4y Chi8. ) is manipulated, the control time? A path '16 displays the telephone number data stored in the memory 19 on the display 17 for a predetermined period of time T,
During this period, the count contents of the call time counter 18 are displayed instead.

In order to prevent unnecessary signals from being sent to the telephone line 2.3 during a call, even if the redial button switch 8 is operated during a call, the control circuit 16 transfers the stored telephone number data to the phone main circuit. 1, therefore,
Avoid sending unnecessary signals to the telephone lines 2,'3. ? Further, the operation at the time of ending the call is the same as the operation at the time of receiving the call, so the description thereof will be omitted.

As described above, according to this embodiment, after on-hook,
The time display is displayed for a certain period of time and can increase the impression on the user (caller or called party). In addition, since the telephone number of the called party can be confirmed not only during dialing but also when the caller needs it, it is useful for preventing and confirming the wrong call. Furthermore, the final suffix. When the handset is disconnected and the handset reaches a state called half-hanging (hook-up 2), the hook switch 6 remains on, so the time is displayed on the display 17 forever. Yotsu [, Check the display on display 17 after the call ends 1
Since the half-multiplying state can be easily found by using "0", it is possible to eliminate the inconvenience caused by half-multiplying.

Furthermore, the memory 19 is used as a redialing memory, the redialing button switch 8 is used as a telephone number display switch,
Since it is a telephone with a redial function,
Furthermore, in this embodiment, the count contents of the call time counter 18 are not displayed until a predetermined time T has elapsed after going off-hook when making a call. There is no problem in displaying the call time immediately after going off-hook.

Also, departure. At the time of a call, if the called party first puts down the handset after talking with the called party, at that time the telephone line 2,
Detect the polarity reversal that occurs in 3 and check the call time? counter 18
It is also possible to stop the counting of the number of calls.By doing so, a more accurate call time can be displayed.

Furthermore, in this embodiment, the numbers can be obtained by operating the dial. Siya 7. ? 1. )%l9VC is memorized and then displayed on the display 17, but the telephone number data obtained by dialing is first stored in a register etc. for the display 17 and then displayed {-,, when dialing After displaying the outgoing number data, the telephone number data may be transferred from this register or the like to the memory 19 for re-dialing and stored therein.

(Effects of the Invention) According to the present invention, the telephone number of the called party is displayed at the time of dialing along with the call time, which is convenient for use and helps to prevent the wrong call. Occasionally,
Since the phone number of the called party can be confirmed, it can be confirmed whether the caller is dialing a wrong number due to a dialing error, and this can eliminate the anxiety of the caller. ) can prevent various inconveniences.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention; FIG.
FIG. 3 is a timing chart and an operation explanatory diagram at the time of transmission in this embodiment. 1...ψ-Telephone body circuit, 2,3...Telephone line 1 line, 4,5●...Fist light emitting diode, 6.War●●hook switch, 7-...Yu-dial keypad, 8- ...●Re-dial button switch, 11...Switch, 12
, 13●●...Phototransistor, 14...Hook switch state detection circuit, 15...Polarity reversal detection circuit, 16.ψ..Control circuit, 17.ψ.●Display device, 18
・・●・Call time counter, 19・・●・Memory. -355

Claims (1)

[Claims] (11) A state detection means for detecting the on/off state of the hook switch, a polarity reversal detection means for detecting a change in the direction of the current flowing through the telephone line, and an on/off state obtained from the state detection means. The state (off-hook state) detection output starts the count, and the reversal detection output of the polarity reversal detection means causes the number of cods to be set to zero, and the number of cods is restarted. Status (on-hook status)
A counting means for stopping the 1 number based on a detection output, a storage means for storing telephone number data obtained by a dial operationf7) A storage means, a switch for displaying a telephone number, a display, and a control means, the control means causes the display to display the counted contents of the counting means, and displays the telephone number data stored in the storage means in place of the counted contents at least when dialing and when operating the telephone number display switch. A display device for a telephone, characterized in that {2} the control means determines whether a predetermined period of time has elapsed from the dial operation or a period from the dial operation until a polarity reversal detection output is obtained from the polarity reversal detection means, whichever is shorter; (3) Switch for displaying a telephone number A display device for a telephone set according to claim 1 or claim 21, characterized in that a push and turn dial button switch is used and a re-dial storage means is used as the storage means.