JPS63197152A - Digital telephone set - Google Patents

Abstract

PURPOSE:To identify a caller before response by changing a call tone depending on a caller number. CONSTITUTION:When an incoming call comes, a number comparison processing section 7 of a high-order processing section 8 is started by a connection control section 3, the section 7 reads the content of a dial memory 9 and its contents are compared with the caller number. when the both are coincident, a preset special call tone output command is given to a telephone control section 6, it is commanded to an output control circuit 17 based on the command inputted from the number comparison processing section 7 in the section 6. When the stored dial number and the caller number are noncoincident, an output command of conventional call tone is given to the telephone control section. Thus, the caller is identified simply.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a digital telephone set, and particularly to a digital telephone set connected to a digital communication network that transmits a calling party number from an exchange to a corresponding receiving terminal when a call is received. It concerns the telephone used.

[Conventional technology]

As a conventional digital telephone, for example, there is one described in Nippon Telegraph and Telephone Corporation Research and Practical Application Report Vol. 33, No. 8 (1984). As shown in FIG. 4, this telephone has a display function in addition to normal basic telephone functions.

That is, the telephones (31) and (32) connected via appropriate exchange means (30) each have a display section (33).
), (34) are provided, respectively. In the same figure (B),
Examples of display units (33) and (34) are shown, in which the caller's number at the time of incoming call is displayed on the upper row and the call charge is displayed on the lower row, respectively, on an LCD or the like.

The operation of the digital telephone as described above will be explained.

For example, when a call is made from the telephone (31) side to the (32) side, the telephone number of the telephone (31) that is the caller, that is, the calling party number, is displayed on the display (32) of the telephone (32) when the call is received.
4) will be displayed.

The calling party number as described above is displayed on the telephone (32) side while the telephone is ringing, that is, while the bell is ringing.

This has the advantage that the called party can identify the caller before answering.

Next, as for other telephones, when the caller transmits a predetermined specific number in addition to the normally used telephone number, a corresponding ring tone will sound (for example, a model made by Sony Corporation). IT-A40). This type of device has the advantage that the other party can be identified by the ringing tone.

[Problem to be solved by the invention 1 However, among the above-mentioned conventional technologies, first of all, in those that display the calling party, only the calling number is always displayed, so the incoming call answering side cannot It is necessary to check the display to identify the caller and decide whether to respond further.

Furthermore, with other telephones, it is necessary to transmit a specific number in addition to the telephone number, which causes inconveniences such as troublesome and troublesome operations for making a call.

The present invention has been conceived in view of the above, and an object of the present invention is to provide a digital telephone that has good operability and can easily identify a caller.

Means for Solving Problem c] The present invention provides a memory means for registering a dial number to be identified, and a comparison means for comparing the calling party number and the registered dial number when a call is made. and a ring tone instructing means for instructing generation of a special ring tone when the two numbers match, and instructing generation of a normal ring tone if they do not match, and a ring tone indicating means for instructing generation of a normal ring tone when the two numbers match; The invention is characterized by comprising a sounding means for generating a sound.

[Operation] According to the present invention, different ring tones are generated depending on the calling party.

The dialed number of the caller requiring the generation of a special ring tone is pre-registered in the memory means. When a call is made, the caller's number is compared with the dialed number stored in the memory means by the comparison means.

As a result, if the two match, the ring tone instructing means instructs the sound generating means to generate a special ring tone.

On the other hand, if the two numbers do not match, the generating means is instructed to generate a normal ring tone.

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows the configuration of a telephone according to an embodiment of the present invention. In this figure, a line I/F circuit (1) connected to an exchange (not shown) through a telephone line exchanges control signals (D) and voice signals (B).

On the one hand, the line 1/F circuit (1) has a line control section (
2) to a connection control unit (3), and on the other hand, to a communication circuit (5) via a codec (4).

The connection control section (3) described above further includes a telephone control section (6).
, and a high-level processing section (8) having a number comparison processing section (7), and this high-level processing section (8) is connected to a telephone control section (6), and a dial memory (9).
have.

Furthermore, a display device (11) is connected to the high-level processing section (8) via a display control section (10), and a hook switch (13) and a dial key are connected via a key scanning section (12). (14), one-touch key (15) and function key (16) are respectively connected.

Next, the output side of the above-mentioned telephone control section (6) is connected to an output control circuit (17). This output control circuit (1
7) is connected on the one hand to a ringer (19) via a calling circuit (18), and on the other hand to a transmitter (20), a handset (21) and a microphone ( 22) and a speaker (23) are respectively connected.

Of the above parts, the line control part (2), the connection control part (3)
), telephone control section (6), high-level processing section (8), dial memory (9), display control section (10) and key scanning section (
12) constitutes a central processing unit (24).

The central processing unit (24) has a circuit composed of, for example, memory means and processor means, and each part is composed of software.

In the above telephone, the line 1/F circuit (1) performs signal transmission and reception with an exchange (not shown), synchronization control, separation of signals and station power supply, and the like.

The line control section (2) performs error detection in the control signal (D), etc., and the connection control section (3) performs signal generation, decoding, and signal processing related to outgoing and incoming calls.

Further, the codec (4) is for A/D and D/A conversion of the audio signal (B), and the telephone call circuit (5) is for switching between a handset call and a hands-free call.

The high-level processing unit (8) stores the dial number in the dial memory (9) based on the key signal input from the key scanning unit (12) and the control signal input from the connection control unit (3).
It also performs additional functions such as registering with a caller and verifying a calling number. In addition, the key scanning unit (12) detects the human power of various keys such as a hook switch (13), a dial key (14) for inputting a dial number, a one-touch key (15) for assigning a dial number, and a function key (16). It is something to do.

Next, the display control section (10) drives the display device (11) based on instructions from the high-level processing section (8) to perform necessary display, and the output control circuit (17) It controls the output of the calling circuit (18) and the talking circuit (5), which generate various audible sounds.

Next, the overall operation of the above embodiment will be explained with reference to the flowcharts of FIGS. 2 and 3.

It is assumed that the calling party number that requires identification is stored in advance in the dial memory (9) by the action of the key scan section (12) and the high-level processing section (8) based on key operations.

First, the incoming signal from the exchange (not shown) is transmitted to the line 1/F circuit (1) and the line control unit (2) together with the calling party number.
) to the connection control unit (3) (see step Sl in FIG. 2).

When such an incoming call is received (see step SC), the connection control unit (3) calls the number comparison processing unit (7) of the higher-level processing unit (8).
is activated (see step SC).

In this number comparison processing section (7), processing as shown in FIG. 3 is performed. First, the contents of the dial memory (9) are read (see step Sl in FIG. 2), and then the contents are compared with the calling party number (see step SC).

Next, if the two match, an instruction to output a preset special ring tone is given to the telephone control unit (6). The telephone control section (6) issues an instruction to that effect to the output control circuit (17) based on the instruction input from the number comparison processing section (7) (see step SC).

On the other hand, if they do not match, the same operation is repeated for other dial numbers stored in the dial memory (9) (see step SC). If all stored dial numbers and calling party numbers do not match, the telephone control unit (
6). The telephone control section (6) issues an instruction to that effect to the output control circuit (17) based on the instruction input from the number comparison processing section (7) (see step SC).

After the above operations, the normal call receiving sequence shown in FIG. 2 is performed again. That is, the output control circuit (17) operates based on the command from the telephone control section (6), the ringing circuit (18) becomes rONJ, and the ringer (19) generates a ringing sound (see step SL in FIG. 2). ). The tone of this ring tone differs depending on the calling party number, as shown in FIG.

Next, after the above operations, the hook switch (13) is monitored, and when an off-hook state is detected due to a response (
(see step SC), and a response signal is sent to the exchange via a route opposite to that of the incoming signal (see step SC).

At the same time, the calling circuit (18) becomes rOFFJ and the ringing tone is stopped (see step SN), and the calling circuit (5) becomes rONJ (see step SN), and a call is in progress (step SN). reference).

[Effects of the Invention] As explained above, according to the telephone according to the present invention,
Since the ring tone is changed depending on the calling party number, there is an effect that the calling party can be easily identified with good operability before answering.

[Brief explanation of the drawing]

FIG. 1 is a circuit block diagram showing one embodiment of the present invention, FIGS. 2 and 3 are flowcharts showing the operation of the above embodiment, and FIG. 4 is an explanatory diagram showing a conventional example. In the figure, (7) is a number comparison processing unit, (8) is a high-level processing unit, (9) is a dial memory, (17) is an output control circuit, (18) is a calling circuit, (19) is a ringer, (24) is a
) is the central processing unit. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Agent: Patent attorney Masuo Oiwa (and 2 others) Figure 2 Figure 3

Claims (1)

[Scope of Claims] A memory means for registering at least one dial number that requires generation of a special ring tone, a calling party number and a dial number registered in the memory means, and a comparison result. If there is a comparison means to output and a dialed number that matches the calling party number, it instructs the generation of a special ringtone, and if there is not,
1. A digital telephone comprising a ring tone instruction means for instructing generation of a normal ring tone, and a sound generation means for ringing based on the instruction and generating one of the ring tones.