JP3328178B2 - Telephone equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone device for receiving a calling number.

[0002]

2. Description of the Related Art At present, an originating telephone number display service in which a telephone station (subscriber exchange) informs a telephone apparatus of a called party of a telephone number (calling party number) of the telephone apparatus (information receiving terminal) of the calling party. (Pre-communication information notification service) November 1, 1997
It was implemented from day. This is a service available to the called party's telephone device connected to the line subscribed to this service and provided with a telephone number receiving function, wherein the telephone number is transmitted before the calling signal (IR) is transmitted. This is to add a sending process.

[0003] This telephone number sending process will be described with reference to the time chart of FIG. When the caller's telephone device makes a call, the central office inverts the polarities of the two telephone lines L1 and L2. Then, the central office sends a CAR (information receiving terminal activation signal) to the telephone equipment of the called party. The telephone equipment of the called party receiving the CAR sends a primary response signal to the central office by forming a DC loop.

When the telephone station detects the primary response signal, it sends an information signal (caller number) (modem signal) of the telephone number of the caller's telephone device to the called telephone device. Upon receiving the modem signal, the telephone device of the called party transmits a reception completion signal to the central office by interrupting the DC loop. When the telephone station detects the reception completion signal, it determines that the telephone number transmission processing has been completed and transmits a normal call signal (IR).

In this way, the calling party number is sent to the called party before the ringing signal (before ringing).

It has been considered that the calling telephone number display service is effectively used by storing the calling party number. For example, it has been considered that the stored caller number is displayed when the user desires it to notify the history of incoming calls, or that the stored caller number is automatically dialed.

[0007] In the conventional method of storing the caller number, the caller number that the caller has turned on before the ringing is not stored as a history of incoming calls.

[0008]

However, when there is a called party who cares about the calling party number, there is a problem that the called party cannot confirm the calling party number.

[0009]

SUMMARY OF THE INVENTION The telephone apparatus of the present invention has been made in view of the above point. When a calling party number is detected by the calling party number detecting circuit, the calling party number is converted to the first phone number.
When the line release is detected before the detection of the calling signal by the incoming call detection circuit, the caller number is read out from the first storage means, and the first caller number is stored in the second storage means.
And control means for reading out the caller number from the first storage means when the call signal is detected, and storing the read out caller number in the second storage means as a second group.

[0010]

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a main part of the present invention.

(1) is an incoming call detection circuit which is connected to a telephone line and detects a call signal. (2) is a caller number detecting circuit for detecting the telephone number (caller number) of the caller from the modem signal of the calling telephone number display service sent from the telephone station. (3) is a caller release detection circuit for detecting that the caller has released the line.

A network circuit (4) is connected to a telephone line to open (on-hook) and close (off-hook, DC loop) the line. (5) is a dial transmission circuit for transmitting a dial number designated by a control circuit (7) described later. (6) is a handset, which has a speaker (61) and a microphone (62), and is connected to the network circuit (4).

A control circuit (7) comprising a microprocessor having a register (71) for temporarily storing information controls each unit based on a ROM (8) storing an operation program. A RAM (9) stores information necessary for the operation of the control circuit (7), for example, a history of incoming calls as shown in FIG.

(10) is a bell, which outputs a ringing tone when an incoming call is received. (11) is a liquid crystal display means for displaying a telephone number and an incoming call history. (12) is an input means for inputting a telephone number and displaying an incoming call history.

Next, the operation of the present invention will be described. FIG. 3 is a flowchart showing the main operation of the control circuit (7) of the first embodiment.

When the control circuit (7) detects the caller number from the caller number detection circuit (2) (Y in S1), the control circuit (7) temporarily stores the caller number in an internal register (71) ( S2). Then, the caller number stored in the register (71) is stored in the incoming call history of the RAM (9) together with the date and time of reception (S3). Further, the caller number and the date and time of reception are displayed on the display means (11) (S4).

Thereafter, when a call signal is detected by the incoming call detection circuit (1) (Y in S5), the incoming call is notified by sounding the bell (10) (S6).

The stored caller number of the incoming call history can be displayed by operating the input means (12) when the user desires.

In this way, all caller numbers received before the detection of a call signal can be displayed as an incoming call history, regardless of whether the caller's line is released. Thus, the called party can also confirm the calling party number that the calling party has put on-hook before receiving the calling signal.

Next, a second embodiment will be described. Second
The configuration of this embodiment is the same as the block diagram of FIG. However, the incoming call history stored in the RAM is classified into a ringing group and a non-ringing group as shown in FIG. The operation of the control circuit (7) is different from that of the first embodiment.

FIG. 5 is a flowchart showing the main operation of the control circuit (7) of the second embodiment. Control circuit (7)
When the caller number is detected by the caller number detection circuit (2) (Y in S11), the caller number is temporarily stored in an internal register (71) (S12). Then, the caller number and the date and time of reception are displayed on the display means (11) (S1).
3).

Thereafter, it is determined whether or not a call signal is detected by the incoming call detection circuit (1) (S14), or the caller is released by the caller release detection circuit (3), that is, the caller releases the handset. Check whether it has been returned to on-hook (S
15).

When a call signal is detected in step S14,
The control circuit (7) stores the caller number stored in the register (71) in the incoming call history of the RAM (9) together with the date and time when it was received as a ringing group (S16). And
By ringing the bell (10), an incoming call is notified (S17).

When detecting the line release of the calling party number in step S15, the control circuit (7) stores the calling party number stored in the register (71) as a non-ringing group in the incoming call history of the RAM (9). It is stored together with the received date and time (S1
8). Then, the incoming call processing ends (S19).

In this way, by determining whether or not the calling party has released the line before receiving the calling signal, the called party can determine whether or not the calling party number has notified the incoming call. Can be.

[0027]

The called party can also confirm the calling party number that the calling party has put on-hook before receiving the calling signal.
Also, the called party can distinguish whether or not the calling party number is on-hook by the calling party before receiving the calling signal.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a main part of a first embodiment of the present invention.

FIG. 2 is a diagram showing the contents of an incoming call history stored in a RAM according to the first embodiment.

FIG. 3 is a flowchart illustrating an operation of the control circuit according to the first embodiment.

FIG. 4 is a diagram showing the contents of an incoming call history stored in a RAM according to the second embodiment.

FIG. 5 is a flowchart illustrating an operation of the control circuit according to the second embodiment.

FIG. 6 is a time chart showing a transmission / reception operation of a calling telephone number display service.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 incoming call detection circuit 2 caller number detection circuit 3 caller release detection circuit 7 control circuit 11 display means 12 input means 71 register

Continuation of the front page (56) References JP-A-4-199953 (JP, A) JP-A-1-241253 (JP, A) JP-A-8-167934 (JP, A) JP-A-5-308410 (JP) JP-A-2-244949 (JP, A) JP-A-60-70854 (JP, A) JP-A-8-204809 (JP, A) JP-A-7-203006 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) H04M 1/57

Claims (1)

(57) [Claims] 1. A caller number detecting circuit connected to a telephone station for transmitting a caller number before transmitting a call signal of a call, for detecting the caller number, and an incoming call detecting circuit for detecting a call signal. A caller release detection circuit for detecting a caller's line release, first storage means for temporarily storing the caller number, and storing the caller numbers in first and second groups. Second storage means for classifying and storing, and when the caller number is detected by the caller number detection circuit, the caller number is stored in the first storage means,
If the line release is detected before the call detection signal is detected by the incoming call detection circuit, the caller number is read from the first storage means and stored in the second storage means as a first group. A telephone device comprising a control means for reading a caller number from the first storage means when a signal is detected, and storing the read caller number in the second storage means as a second group.