CN2205087Y

CN2205087Y - Information telephone with liquidcrystal display

Info

Publication number: CN2205087Y
Application number: CN 94237185
Authority: CN
Inventors: 曾涛
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-15
Filing date: 1994-04-15
Publication date: 1995-08-09
Anticipated expiration: 2004-04-15

Abstract

The utility model relates to an information telephone with a liquid-crystal display, which is mainly composed of the existing telephone dial keyboard and a circuit board which is installed in the existing telephone case or an exclusive use housing and is composed of a signal receiving and sending device, a data memory, a central processing unit and a liquid crystal display.. The utility model not only keeps the function of original telephone communication, but also has the function of words information transmission of a computer and a modem; meanwhile, the utility model has low facility cost and easy use without professional personnel, and is easy to generalize and popularize; the utility model efficiently overcomes insufficiencies of the prior art, and is suitable for digital communications with low-rise velocity request.

Description

Information telephone with liquidcrystal display

The utility model relates to and a kind of monolithic computer and existing communication telephones is combined, has the novel phone of can receiving digital signals and showing with literal or graphics mode, specifically refers to a kind of information telephone with liquid crystal display.

The existing main mode of utilizing telephone wire to carry out the numeral exchange is to connect " modulator-demodulator " or " modem card " by computer, computerized information is exported or input by modulation or demodulation, because this mode need adopt computer and exchanges data application software and modulator-demodulator when using, as adopt personal computer (PC), and exist that use cost is higher, volume is big and the user must grasp the deficiency of the operation sequence of computer, makes it be difficult to popularize.

The purpose of this utility model just is to provide the simple monolithic computer of a kind of employing to combine with existing plain old telephone, and have can receiving digital signals and with literal or the graphics mode information telephone by the band liquid crystal display of liquid crystal display, to overcome the deficiencies in the prior art effectively.

The purpose of this utility model realizes in the following manner: this information telephone mainly is by installing in existing telephone casing or special shell, receive and transmitter by signal, data storage, central processing unit, circuit board that LCD is formed and existing telephone dialing keyboard are formed, wherein signal receives and transmitter employing dtmf code decoder or dtmf decoder, respectively with the phone inlet wire, dialing keyboard and central processing unit link to each other, central processing unit adopts the single-chip computer, and link to each other with liquid crystal display systems with data storage, liquid crystal display systems comprises character generator and character library, explicit driving of liquid crystal and display.

Adopt the information telephone of band liquid crystal display of the present utility model, because single-chip computer and existing plain old telephone are organically integrated, make it both keep the communication function of original phone effectively, but also has the Word message transfer function of computer and modulator-demodulator, simultaneously because its operation keyboard adopts the dialing keyboard, easy to use, need not the professional, and equipment cost is cheap, be easy to popularize, overcome the deficiencies in the prior art effectively, be highly suitable for the not high digital communication of rate request.

Description of drawings.

Fig. 1 is a kind of example structure schematic diagram of the present utility model;

Fig. 2 is an another kind of example structure schematic diagram of the present utility model;

Fig. 3 is a circuit block diagram of the present utility model;

Fig. 4 is an embodiment circuit diagram of the present utility model.

Wherein: 1-telephone set, 2-dial, 3-LCD, the 4-operating knob, the 5-telephone wire, the 6-signal receives and transmitter, the 7-central processing unit, the 8-data storage, 9-character generator and character library, 10-liquid crystal display driving and display, 11-shell, the 12-wiring board, 13-interface control piece.

Below in conjunction with drawings and Examples the utility model is further described.

As shown in the figure, the Chinese information telephone of band liquid crystal display of the present utility model is to have by signal reception and transmitter (6) at existing telephone (1) or special shell (11) device, data storage (8), central processing unit (7), the circuit board (12) that LCD (3) is formed, and in conjunction with telephone dial (2), wherein signal receives and transmitter (6) employing dtmf code decoder or dtmf decoder, this transceiver respectively with phone inlet wire (5), telephone dial (2) and central processing unit (7) link to each other, central processing unit (7) adopts the single-chip computer, and link to each other with liquid crystal display systems with data storage (8), liquid crystal display systems comprises character generator and character library (9), explicit driving of liquid crystal and display (10).In embodiment 1, complete machine adopts existing telephone set (1), at the upper right corner of telephone set device LCD (3) is arranged, and thereunder be provided with operating knob (4), device has circuit board (12) in the machine, in circuit board, central processing unit (7) adopts 8031 single-chip computers (also can adopt 80C31,80C51 single-chip computer), data storage (8) adopts 6264 and 27256 integrated packages (also can adopt other CMOS at this, dynamic or the static memory of TTL, as 4464 integrated packages), signal receives and transmitter (6) adopts dtmf code decoder or dtmf decoder, as integrated package MT8880, MT8870, liquid crystal display systems is by 12 * 12 or 16 * 16 dot matrix Chinese character mask chips and 120 * 32 or 128 * 64 dot matrix lcd modules, operating knob (4) by interface control piece (13) respectively with above-mentioned (6), (7), (8), (9) reaching (10) links, and in embodiment 2, then with the foregoing circuit panel assembly in special shell (11), shell is provided with LCD, equally also be provided with operating knob (4), and utilize dial (2) on the telephone set, thereby form and the supporting signal processor of telephone set.

Fig. 4 is a kind of concrete enforcement circuit of Fig. 3, wherein signal reception and transmitter (6) adopt dtmf code decoder or dtmf decoder (as integrated package MT8880, MT8870), this transceiver respectively with phone inlet wire (5), telephone dial (2) and central processing unit (7) link to each other, central processing unit (7) adopts the single-chip computer (as 8031 single-chip computers, also can adopt 80C31,80C51 single-chip computer), and with data storage (8) (6264 and 27256 integrated packages or other CMOS, dynamic or the static memory of TTL, as 4464 integrated packages) link to each other with liquid crystal display systems, liquid crystal display systems comprises character generator and character library (9), liquid crystal display driving and display (10) (forming by 12 * 12 or 16 * 16 dot matrix Chinese character mask chips and 120 * 32 or 128 * 64 dot matrix lcd modules respectively).

Workflow of the present utility model is: after the telephone wire that connects this device is connected, signal is sent to signal by telephone wire and receives and transmitter, after being converted to digital signal, send central processing unit to, central processing unit is with digital signal Classification and Identification in addition, the deposit data that needs are preserved is in data storage, and the character code that will show is sent to character generator, character generator is according to code, from character library, take out corresponding character pattern data, and by liquid crystal display driving and display, with Chinese, English, the mode of numeral or figure shows, and each button by telephone dial, can output on the telephone wire by the dtmf signal (multisound and double-frequency dialing signal) of specific mode, for the other side's computer Recognition as appointment.

Claims

1, a kind of information telephone with liquid crystal display, mainly be by installing in existing telephone casing (1) or special shell (11), receive and transmitter (6) by signal, data storage (8), central processing unit (7), circuit board (12) that LCD (3) is formed and existing telephone dialing keyboard (2) are formed, it is characterized in that signal receives and transmitter (6) adopts dtmf code decoder or dtmf decoder, and respectively with phone inlet wire (5), dialing keyboard (2) and central processing unit (7) link to each other, central processing unit (7) adopts the single-chip computer, and link to each other with liquid crystal display systems with data storage (8), liquid crystal display systems comprises character generator and character library (9), explicit driving of liquid crystal and display (10).

2, the information telephone of band liquid crystal display according to claim 1, it is characterized in that its circuit board (12) be device in existing plain old telephone casing (1) or the device in special-purpose casing (11).