CN2273929Y

CN2273929Y - Telephone/telegraphic set

Info

Publication number: CN2273929Y
Application number: CN 95236214
Authority: CN
Inventors: 龙熙德
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-02-17
Filing date: 1995-02-17
Publication date: 1998-02-04
Anticipated expiration: 2005-02-17

Abstract

The utility model relates to a telephone/telegraphic set, composed of a monolithic computer, the peripheral circuit of the monolithic computer, a casing and a keyboard on the casing, wherein, the peripheral circuit comprises an interface circuit, a keyboard input digital display circuit, a character display bit selection driver, a character display, a field selection driver, a printer interface circuit, a character communication off-hook on-hook circuit, a polarity protection circuit, a busy tone checking circuit, a ringing circuit and a message transmission start sensor interface circuit. The utility model has the advantage that the utility model adopts a general telegraphic line to realize a character communication without a special telegraphic line, can used as a character alarm, and can fast dial a long-distance telephone and automatically dial a BP.

Description

Phone, text machine

The utility model relates to a kind of phone, text machine, belongs to the telephone communication set class.

The existing telephone communication device, can not make the communication of deaf-mute strange land, and wire telegram must take the private telegraph circuit, it is universal like that, convenient to be not so good as phone, and need manually be translated into literal and deliver the teleprinter complex structure after receiving code, now do not popularize, the existing warning device sound and light alarm that generally uses: promptly at the dangerous situation place, or wired, or report to the police and do not adopt mode word to report to the police with sound, light behind the wireless transmission certain distance.

The purpose of this utility model provides kind of a phone, text machine, so that the deaf-mute with the mode word communication, promptly imports telephone number and literal code, checks the transmission automatically of errorless back, and the other side exports the literal that is received after receiving this literal code automatically.

The purpose of this utility model is to adopt following scheme to realize; it is that core is carried out logical operation and reasoning with the single-chip microcomputer; handle input/output signal; comprise telephone set and keyboard; key in data display circuit, interface circuit, printer interface circuit, literal transmit off-hook, on-hook circuit, electronic switching circuit, busy tone testing circuit, polar protective circuit, two audio-frequency generator circuit, frequency demodulation decoding phone; ring detecting circuit, literal transmits the start sensor interface circuit.

Characteristics of the present utility model are not need the private telegraph circuit can adopt the universal telephone circuit to carry out the literal communication, can be used as the literal alarm uses, store warning address, warning kind, name, foregoing can be quoted during warning and driving sound, light are reported to the police, can store beeper number and automatic the calling, it is long-distance to store also fast automatically group of toll number.

The utility model has two kinds of embodiments, and a kind of is the text machine, and another kind is phone, text machine.

Embodiment of the present utility model is provided by appended accompanying drawing, and Fig. 1 is the structured flowchart of second embodiment, and Fig. 2, the 3rd, the electrical schematic diagram of text machine, Fig. 4 are the electrical schematic diagrams of phone part, below in conjunction with description of drawings the utility model.With reference to accompanying drawing, the utility model comprise casing and on keyboard, the text circuit in the text machine scheme comprises single-chip microcomputer and peripheral circuit, the peripheral circuit of single-chip microcomputer 8 comprises interface circuit 9, adopts integrated package 8155 or similar other elements; Key in data display circuit 10, keyboard contain plurality of keys 101, as 0-9, *, the # key, R key etc., wherein 4 are defined as 1,2,4,8 numerical keys, 3 are defined as A, B, C function key, driver 102 is selected in character demonstration position, selects integrated package 75452 for use, character indicator 103, select LA39X1-11 for use, section is selected driver 104, selects 7407 for use, printer interface circuit 11, contain logic control circuit 111, select 74LS32 for use, printer 12, literal transmits off-hook, on-hook circuit 12, contain driver 121, select integrated package 75452 for use, relay J 1 is selected JRC-21F-4000 for use; Literal receives off-hook, on-hook circuit 13, contains driver 131, selects integrated package 75452 for use, relay J ₂, select JRC-21F-8000 for use; By single-chip microcomputer output logic signal level control

literal transfer circuit

12,13, make relay J ₁, J ₂Opening and closing make external circuit L ₁, L ₂Form open circuit and close access, finish off-hook and on-hook function.Polar protective circuit 1 is by diode D ₁-D ₄Form, make L ₁, L ₂Supply power voltage polarity is fixed; Busy tone testing circuit 2 contains amplifier Q ₁, select triode 9014C for use, frequency decoding circuit 21 is selected integrated package LM567 for use, and photoelectric isolating circuit 22 is selected 4N25 for use, and the busy-back signal after the amplification is through frequency decoder, and photoelectric isolating circuit send single-chip microcomputer; Electronic switching circuit 4 is selected integrated package CD221000 for use, and two audio-frequency generator circuit 3 are selected integrated package 9140 for use, and single-chip microcomputer output logic level makes the orderly opening and closing of electronic switch, makes 0-9, *, # number and character be modulated into the corresponding frequencies signal, through amplifier Q ₂After the amplification, through J ₁Closing point, polar protective circuit 1 send L ₁, L ₂External circuit; Frequency decoder 52 is selected integrated package CM8870 for use, and not gate 51 is selected integrated package 7404 for use, external circuit L1, L ₂The frequency signal that comes is through polar protective circuit 1, relay J ₂Closing point, capacitor C ₈Transistor base is given in coupling, send frequency decoder 52 after the amplification, and the output logic level send single-chip microcomputer to handle after not gate 51 is anti-phase, and ringing circuit 6 contains light-emitting diode D ₈, photoelectrical coupler 61 is selected 4N25 for use, by external circuit L ₁, L ₂The signal that transmits is through relay J ₁, J ₂, driving D8 and 61, the output logic level send single-chip microcomputer to handle; Text transmits start sensor interface circuit 14, contains resistance R 24, photoelectrical coupler 141, selects 4N25 for use, when having executed positive voltage, promptly reports to the police, and when beeper dialled automatically, the output logic level sent single-chip microcomputer to handle.Other components and parts of the also optional apparatus same function of selecting for use in above-mentioned each circuit of components and parts such as integrated package.

Below concise and to the point narration operational circumstances of the present utility model

One digital input, modification and demonstration

Button Presentation Function 1, A 0 storage digital 02,1+A 1 storage digital 13,2+A 2 storages digital 24,1+2+A 3 storages digital 35,4+A 4 storages digital 46,1+4+A 5 storages digital 57,2+4+A 6 storages digital 68,1+2+4+A 7 storages digital 79,8+A 8 storages digital 810,8+1+A 9 storages digital 911,8+2+A A stores digital A12,8+2+1+A B stores digital B13,8+4+A C stores digital C14,8+4+1+A D stores digital D15,8+4+2+A E stores digital E16,8+4+2+1+A F stores digital F17, last that figure place sign indicating number of B deletion is with a left side

Two, input, modification password and demonstration

Button Presentation Function 1, C 0 storage password 02,1+C 1 storage password 13,2+C 2 storage passwords 24,1+2+C 3 storage passwords 35,4+C 4 storage passwords 46,4+1+C 5 storage passwords 57,2+4+C 6 storage passwords 68,1+2+4+C 7 storage passwords 79,8+C 8 storage passwords 810,1+8+C 9 storage passwords 911, last that password of B deletion is with a left side

Press aforesaid operations, literal code (comprise literal---by 1248 codings, commonly used telephone number, toll number, beeper sign indicating number) input can be carried out the literal communication, report to the police automatically, long-distance fast group and beeper dialing automatically.

In phone, text machine scheme, telephone circuit 7 connects with external circuit with literal communication change over switch by voice with the text circuit, telephone circuit contains ringing circuit 71, selects integrated package LH1240 for use, dual-tone dialing circuit 72, select integrated package PBD3535 for use, talked about telecommunication circuit 73, selected for use integrated package TEA1067, stirred change over switch, can carry out voice, literal communication respectively.

Claims

1, a kind of phone, text machine, comprise casing and on keyboard, single-chip microcomputer and peripheral circuit thereof, the peripheral circuit that it is characterized in that described single-chip microcomputer (8) comprises interface circuit (9), keyboard input digit display circuit (10), keyboard contain 0-9 in interior plurality of keys (101), and driver (102) is selected in character demonstration position, character indicator (103), section is selected driver (104); Printer interface circuit (11) contains logic control circuit (111), printer (112); Literal transmits off-hook on-hook circuit (12), contains driver (121), relay J ₁Literal receives off-hook on-hook circuit (13), contains driver (131), relay J 2; Polar protective circuit (1); Busy tone testing circuit (2) contains amplifier Q ₁, frequency decoding circuit (21), photoelectric isolating circuit (22); Electronic switching circuit (4); Two audio-frequency generator circuit (3), frequency decoding circuit (5) contains amplifier Q ₃And frequency decoder (52) and not gate (51); Ringing circuit (6) contains light-emitting diode D ₈And photoelectrical coupler (61); Text transmits sensor interface circuitry (14), contains resistance R 24, photoelectrical coupler (141).

2, phone according to claim 1, text machine, it is characterized in that described telephone circuit (7) connects with external circuit with literal communication change over switch by language with the text circuit, described telephone circuit (7) contains ringing circuit (71), dual-tone dialing circuit (72) and talked about telecommunication circuit (73).