CN2244275Y

CN2244275Y - Electronic recording voice pager

Info

Publication number: CN2244275Y
Application number: CN 95245118
Authority: CN
Inventors: 党荣升
Original assignee: KETONG ELECTRONICS CO Ltd XIAN
Current assignee: Ketong Telecommunication Co., Ltd., Xi'an City
Priority date: 1995-07-13
Filing date: 1995-07-13
Publication date: 1997-01-01
Anticipated expiration: 2005-07-13

Abstract

The utility model relates to an electronic recording voice pager which aims to adopt new structure and new recording method and develop a scientific and practical voice pager, mainly comprising a receiver assembly, a decoder assembly and a recording power supply circuit, wherein, the receiver assembly comprises a receiving antenna circuit, an oscillator circuit, a frequency mixing filter circuit and a frequency mixing amplifying circuit, and the decoder assembly comprises a group calling circuit and a selective calling circuit. The utility model has the advantages that the electronic recording voice pager record voice for 20 seconds to 60 seconds, voice can be recorded in many segments, and the receiving sensitivity is 4uV/ m. Group calling does not record voice, and the group calling time is controlled by a transmitting station. The selective calling can record voice, and can be reproduced and permanently reserved. The utility model has small size and portability, and is global universal.

Description

Electronic recording formula speech calling machine

The utility model relates to wireless communication apparatus, refers in particular to a kind of electronic recording formula speech calling machine.

In background technology, " Chinese utility model patent communique " is in its patent No. 93229711.0 of Granted publication on July 27th, 1994 a kind of " language beep-pager ", its structure is that the output audio signal of dash receiver circuit links to each other with voice synthesizer through plug and socket, digital signal links to each other with the single-chip microcomputer of controller, single-chip microcomputer links to each other with display, VODER, coding card power supply circuit simultaneously, have and to carry out paging, can carry out language broadcasting again.Its weak point is the structure relative complex.In " Chinese utility model patent communique ", on September 7th, 1994 Granted publication a kind of " speech calling machine ", the patent No. 93219604.7, its structure is made up of high-frequency inductor, plane No. identifier, audio decoder, audio frequency amplifier, audiohead and sounder.Its weak point is, needs audiohead and sounder in the structure, and is bulky, inconvenient maintenance.

The purpose of this utility model is the weak point that overcomes in the above-mentioned background technology, develop a kind of " electronic recording formula speech calling machine ", with the new way of recording, new circuit construction of electric power, make its further scientific, practicability, reach the convenient purpose of using of people.

Technical solution of the present utility model is as follows:

Comprise the receiver combination, decoder combination and recording power circuit three parts, wherein the receiver combination comprises the reception antenna circuit, pierce circuit, mixing and filtering circuit and mixing amplifying circuit, the decoder combination comprises grouies busy circuit and selective call circuit, be characterized in: in the mixing and filtering circuit of receiver combination, mixer amplifier Q2 grid connects radiofrequency signal of being exported by capacitor C in the reception antenna circuit 5 and three vibration harmonic signals being exported by capacitor C in the oscillating circuit 23 respectively, the oscillation circuit that mixer amplifier Q2 drain electrode output mixed signal is formed via capacitor C 6 and coil T1, connect crystal filter FL1 input, 3 ends that connect mixing amplification integrated block IC 1 through the crystal filter FL1 output of filtering output intermediate-freuqncy signal, export voice signal A and digital signal B respectively by its 22 end and 15 ends, in decoder combination and recording power combinational circuit, digital signal B connects 16 ends of decoding amplifier IC2 and 16 ends of IC3 respectively, the 17 ends output control signal of decoding amplifier IC2 connects controllable silicon SCR 1 trigger electrode through triode Q1, controllable silicon SCR 1 anode connects triode Q3 base stage, triode Q3 collector electrode connects BB machine 1 end and capacitor C 5 one ends, BB machine 3 ends are through voice channel control switch AN1 and connect capacitor C 5 other ends, the collector electrode of the negative electrode of controllable silicon SCR 1 and triode Q1, BB machine 2 ends output voice control signal and voice signal output terminals A also connects 7 ends of power amplifier

level ic chip

4 and 20 ends of recording ic chip 5, ic chip 4

outputs

1 and 3 connect loudspeaker Y, the promotion loudspeaker send grouies busy sound, decoding integrated package IC3 is by 17 ends output selective call code control signal, connect controllable silicon SCR 2 trigger electrodes through triode Q2, controllable silicon SCR 2 negative electrodes connect triode Q4 base stage, triode Q4 collector electrode connects 3 ends and the capacitor C 6 and the C7 in parallel of the ic chip 6 that boosts, 5 and 6 ends of integrated package C6 also connect capacitor C 6, C7, controllable silicon SCR 2 and triode Q2 collector electrode, 16 ends and 28 ends that connect recording ic chip 5 by the 8 ends output of the ic chip 6 that boosts, 14 ends of recording ic chip 5 are connected loudspeaker Y with 15 ends output amplifying signal, send the selective call voice, 27 ends of ic chip 5 connect the piece IC6 output 8 that boosts through playback operating key 27.

Technical solution of the present utility model also comprises:

In the reception antenna circuit, inductance L 1, capacitor C 1, inductance L 2 and capacitor C 4 series connection, capacitor C 4 other ends connect radio frequency amplifier Q1 grid, and capacitor C 2 connects inductance L 1 other end, and capacitor C 3 connects the contact of inductance L 3 and capacitor C 4.

In pierce circuit, the crystal CR1 of decision frequency of oscillation connects triode Q3 base stage through capacitor C 19, inductance L 5, inductance L 6, capacitor C 22 and the C33 of triple-frequency harmonics selected in triode Q3 emitter and selecting, inductance L 6 and capacitor C 22 parallel connections, the triple-frequency harmonics that the output of capacitor C 23 other ends is selected connects mixer amplifier Q2 grid, and triode Q3 collector electrode connects capacitor C 21 and inductance L 7 in parallel.

Description of drawings of the present utility model is as follows:

Fig. 1 is the recipient combinational circuit.

Fig. 2 is the decoder combinational circuit.

Element models such as integrated package among the above-mentioned figure are described as follows:

IC1-MC3363, Q1-3SK113, Q2-3SK113, Q3-2SC3357, the filtering of FL1-pottery, IC2-VD5014, IC3-VD5014, IC4-TDA7050, IC5-ISD2560, IC6-MAX777, MAX631, VSS1-are as test point, and VIEG-is as test point.

The utility model adjoint is described in further detail:

Referring to Fig. 1, in the reception antenna circuit, inductance L 1, capacitor C 1, inductance L 2, capacitor C 4 series connection are by the gold-plated sheet metal coiled integral body of bar shaped ring-type.Termination inductance L 1 on the capacitor C 2, the contact of termination inductance L 2 and capacitor C 4 on the capacitor C 3, the diode D1 negative pole and capacitor C 4 other ends also connect radio frequency amplifier Q1 grid, capacitor C 2, C3 and diode D1 positive pole meet test point VSS1, radio frequency amplifier Q1 drain electrode connects the oscillation circuit of inductance L 3 in parallel and capacitor C 0 composition, the capacitor C 0 tuning radiofrequency signal of picking up is delivered to mixer amplifier Q2 drain electrode through capacitor C 5, and the local frequency signal that capacitor C 23 is sent here in local oscillator mixes.In local oscillator, its this vibration frequency is decided by crystal CR1, crystal CR1 one end connects triode Q3 base stage through capacitor C 19, inductance L 5, capacitor C 21 and inductance L 7 parallel connections, its end in parallel connects triode Q3 collector electrode and capacitor C 20, capacitor C 20 another termination triode Q3 base stages, inductance L 6, capacitor C 22 and C23 that triode Q3 emitter connects, select 3 subharmonic of oscillator, and the frequency mixer Q2 that feeds, crystal CR1, resistance R 13,

capacitor C

21 and 7 times client link test points of inductance L VSS1.Frequency mixer Q2 mixes radio-frequency carrier signal and the local oscillation signal that enters, connect the oscillation circuit that capacitor C 6 and coil T1 form by frequency mixer Q2 drain electrode output, through selecting useful intermediate-freuqncy signal, here be 10.7 megahertzes, and the crystal filter FL1 that feeds, crystal filter FL1 resonance is in intermediate frequency, filtering unwanted other frequency signal, and export 3 ends of useful intermediate-freuqncy signal to mixing amplification integrated block IC 1, be A end output voice signal by 22 ends then, by 15 ends is B end output digital signal, and 17 ends are that VIEG is as test point.The peripheral cell of ic chip 1 comprises capacitor C 13 and inductance L 4 in parallel, the light-emitting diode D2 that links to each other with power end VCC1, and crystal filter FL2 and FL3, and these peripheral cells and ic chip 1 are combined into integral body, can buy on market.Referring to Fig. 2, decoder circuit work is like this, and voice signal A connects 7 ends of

ic chip

4 and 20 ends and BB machine 2 ends of ic chip 5, and digital signal B connects 16 ends of decoding integrated package IC2 and 16 ends of IC3.When grouping busy, digital signal B is through decoding integrated package IC2, export control signal through triode Q1 by 17 ends, connect controllable silicon SCR 1 trigger electrode, control triode Q3 conducting makes the BB machine send the sound, Push switch AN1, the BB machine is amplified through power discharging integrated block IC4 with speech signal A end by 2 ends output voice audio signals, promotes loudspeaker Y and sends the sound.Switch AN2 in controllable silicon SCR 1 two ends parallel connection has test-run a machine function and force switch function, during selective call, digital signal B is through decoding integrated package IC3, translate the selective call coded signal by 17 ends, connect controllable silicon SCR 2 trigger electrodes through triode Q2, control triode Q4 conducting, input is through 3 ends of the piece IC6 that boosts, 3V by original service voltage is raised to 5V, 16 ends and 28 ends that the 8 ends output of piece IC6 of boosting connects recording piece IC5 begin recording, by 14 ends and 15 end output signals, promote loudspeaker Y and send the sound, playback time is finished by operating key AN4.

Advantage of the present utility model and effect are:

1, voice calling device adopts the pulse code technology, is furnished with the double address code, can realize Group busy and selective call, do not record when grouping busy that the time of grouping busy is grasped by transmitting station, during selective call, Can record rear playback, also can forever keep.

2, owing to adopt special-purpose booster circuit, battery is reduced, volume-diminished, side Portable belt, applied range.

3, the user is not subjected to the restriction of cultural written form and language, but global general-use, And do not affect people's normal operation during obtaining information, being referred to as is to open the paging city One golden key.

4, on probation through manufacturing experimently, stable performance, its technical indicator be record length be 20～60 seconds, can divide Multitake recording; Accepting sensitivity is 4 μ V/m.

Claims

1, electronic recording formula speech calling machine, comprise the receiver combination, the decoder combination, the recording power supply makes up three parts, wherein the receiver combination comprises the reception antenna circuit, pierce circuit, mixing and filtering circuit and mixing amplifying circuit, the decoder combination comprises grouies busy circuit and selective call circuit, it is characterized in that: in the mixing and filtering circuit of receiver combination, mixer amplifier Q2 grid connects radiofrequency signal of being exported by capacitor C in the reception antenna circuit 5 and three vibration harmonic signals being exported by capacitor C in the oscillating circuit 23 respectively, the oscillation circuit that mixer amplifier Q2 drain electrode output mixed signal is formed via capacitor C 6 and coil T1, connect the input of crystal filter FL1 end, 3 ends that connect mixing amplification integrated block IC 1 through the crystal filter FL1 output of filtering output intermediate-freuqncy signal, export voice signal A and digital signal B respectively by its 22 end and 15 ends, in decoder combination and recording power combinational circuit, digital signal B connects 16 ends of decoding amplifier IC2 and 16 ends of IC3 respectively, the 17 ends output control signal of decoding amplifier IC2 connects controllable silicon SCR 1 trigger electrode through triode Q1, controllable silicon SCR 1 anode connects triode Q3 base stage, triode Q3 collector electrode connects BB machine 1 end and capacitor C 5 one ends, BB machine 3 ends are through voice channel control switch AN1 and connect capacitor C 5 other ends, the collector electrode of the negative electrode of controllable silicon SCR 1 and triode Q1, BB machine 2 ends output voice control signal and voice signal output terminals A also connects 7 ends of power amplifier level ic chip 4 and 20 ends of recording ic chip 5, ic chip 4 outputs 1 and 3 connect loudspeaker Y, the promotion loudspeaker send grouies busy sound, decoding integrated package IC3 is by 17 ends output selective call code control signal, connect controllable silicon SCR 2 trigger electrodes through triode Q2, controllable silicon SCR 2 negative electrodes connect triode Q4 base stage, triode Q4 collector electrode connects 3 ends of the ic chip 6 that boosts, 16 ends and 28 ends that connect recording ic chip 5 by the 8 ends output of the ic chip 6 that boosts, 14 ends of recording ic chip 5 are connected loudspeaker Y with 15 ends output amplifying signal, send the selective call voice, 27 ends of ic chip 5 connect the piece IC6 output 8 that boosts through playback operating key 27.

2, electronic recording formula speech calling machine according to claim 1, it is characterized in that: in the reception antenna circuit, inductance L 1, capacitor C 1, inductance L 2 and capacitor C 4 series connection, capacitor C 4 other ends connect radio frequency amplifier Q1 grid, capacitor C 2 connects inductance L 1 other end, and capacitor C 3 connects the contact of inductance L 3 and capacitor C 4.

3, electronic recording formula speech calling machine according to claim 1, it is characterized in that: in pierce circuit, the crystal CR1 of decision frequency of oscillation connects triode Q3 base stage through capacitor C 19, inductance L 5, inductance L 6, capacitor C 22 and the C33 of triple-frequency harmonics selected in triode Q3 emitter and selecting, inductance L 6 and capacitor C 22 parallel connections, the triple-frequency harmonics that the output of capacitor C 23 other ends is selected connects mixer amplifier Q2 grid, and triode Q3 collector electrode connects capacitor C 21 and inductance L 7 in parallel.