CN2655522Y

CN2655522Y - Radio with storage recording function

Info

Publication number: CN2655522Y
Application number: CN 03273216
Authority: CN
Inventors: 黄驭
Original assignee: ZHINENGDA DIGITAL SCIENCE AND TECHNOLOGY Co Ltd DONGGUAN CITY
Current assignee: ZHINENGDA DIGITAL SCIENCE AND TECHNOLOGY Co Ltd DONGGUAN CITY
Priority date: 2003-08-08
Filing date: 2003-08-08
Publication date: 2004-11-10
Anticipated expiration: 2013-08-08

Abstract

The utility model relates to the electrode product technological art, more particularly to a radio with the memory recording function, which is equipped with a memory inside the device in addition of comprising corresponding parts of the existing radio, wherein the memory is connected with a central control unit through a digit/mode transformer. Thereby having the recording function directly, which can record the radio station programs in the memory, the operation is quite convenient, and the volume is small which is convenient for carrying.

Description

The broadcast receiver that has the memory sound-recording function

Technical field:

The utility model relates to technical field of electronic products, refers in particular to a kind of broadcast receiver that has the memory sound-recording function.

Background technology:

Broadcast receiver is the instrument of a kind of study and amusement, because its program enriches, and wireless receiving, and reception influences not quite by the geographical position, and easy to carry, thereby very popular.And existing broadcast receiver is just merely accepted station broadcast and is played to the audience, when if the audience will preserve institute's favorite program content, at first way is that broadcast receiver is connected with tape recorder, by recorder the programme content that broadcast receiver broadcasts is recorded on the tape again.Yet, need impedance matching when transcribing, promptly need external switching part, use has inconvenience more.Occur radio-cassette player that all-wave receiver and recorder are combined subsequently, but volume is bigger, not portable, and relatively power consumption.

Summary of the invention:

The purpose of this utility model is to provide a kind of self-contained storing devices, program of radio station can be recorded in memory, but and the broadcast receiver of repeat playing, its volume is small and exquisite, and is easy to carry.

For achieving the above object, the utility model removes and comprises existing wireless corresponding component, also is provided with memory in machine, and memory can be DRAM or FLASH, and it is connected with central control unit in the machine through D/A; The microprocessor U1 of described central control unit is with the mould/number port ADIN and the D/A port DAOUT of mouth line ROUT2 and LOUT1 difference connected storage, wherein the mouth line ROUT2 of microprocessor U1 is connected in the mould/number port ADIN of memory through capacitor C 34, triode T11, and the mouth line LOUT1 of microprocessor U1 is connected in the D/A port DAOUT of memory through resistance R 34, and the D/A port DAOUT of memory is connected in through capacitor C 42 on the port one 6 of integrated circuit U2 of power amplification circuit simultaneously; The input of described central control unit also is connected with microphone by pre-amplification circuit.

The utility model is provided with memory in machine, thereby attach sound-recording function is arranged, program of radio station can be recorded in memory, time spent play-overs again, be beneficial to user learning oneself and want the content learned, as foreign language teaching program, Chinese folk art forms program, popular song etc., it is very convenient to operate, and volume is small and exquisite, is easy to carry.

Description of drawings:

Accompanying drawing 1 is a functional-block diagram of the present utility model;

Accompanying drawing 2 is the utility model embodiment circuit diagram;

Accompanying drawing 3 is the utility model embodiment control circuit figure.

Embodiment:

See shown in the accompanying drawing 1～3, the utility model includes the digital radio reception unit 1 and the central control unit 2 of subsidiary antenna 11, the output of digital radio reception unit 1 is connected with central control unit 2, central control unit 2 is a single chip microcomputer system, comprise microprocessor U1 and be solidificated in wherein software program, the power amplification circuit 5 that the output of central control unit 2 connects LCD 6 and drives loudspeaker 7.The microprocessor U1 of central control unit 2 is connected in mouth line TUNELED3 and STLED4 on the

port

6 and 16 of integrated circuit U4 of LCD 6.Also be provided with memory 4 in the described wireless machine, memory 4 is connected with central control unit 2 in the machine through D/A 3, and memory 4 can be DRAM or FLASH.The microprocessor U1 of central control unit 2 is with the mould/number port ADIN and the D/A port DAOUT of mouth line ROUT2 and LOUT1 difference connected storage 4, wherein the mouth line ROUT2 of microprocessor U1 is connected in the mould/number port ADIN of memory 4 through capacitor C 34, triode T11, and the mouth line LOUT1 of microprocessor U1 is connected in the D/A port DAOUT of memory 4 through resistance R 34, and the D/A port DAOUT of memory 4 is connected in through capacitor C 42 on the port one 6 of integrated circuit U2 of power amplification circuit 5 simultaneously.The input of central control unit 2 also is connected with microphone 9 by pre-amplification circuit 8, and the output of pre-amplification circuit 8 also is connected with the mould/number port ADIN of memory 4 through resistance R 44 when capacitor C 2, C34 are connected with the mouth line ROUT2 of microprocessor U1.

During use, digital radio reception unit 1 receives the broadcast singal that send in the radio station by antenna 11, and signal imported central control unit 2, by the microprocessor U1 analyzing and processing in the central control unit 2, mouth line ROUT2 and LOUT1 by microprocessor U1 (S1A0903X01) exports to power amplification circuit 5 subsequently, by the integrated circuit U2 (CXA1622) of power amplification circuit 5 with the analog signal processing and amplifying and drive loudspeaker 7 playbacks.When if the user need preserve programme content, operation control corresponding key, make central control unit 2 make the work order of recording, mouth line ROUT2 and the LOUT1 of microprocessor U1 (S1A0903X01) also transmits signal to memory 4 (RK501) when exporting to power amplification circuit 5, analog signal is converted to digital signal and is deposited in the memory 4 by the mould/number port ADIN of memory 4 (RK501) through D/A 3.When needing the programme content in the playout storage 4, press corresponding button and drive memory 4, make it the programme content that preserve inside is exported by D/A port DAOUT, be delivered to through capacitor C 42 on the port one 6 of integrated circuit U2 of power amplification circuit 5, integrated circuit U2 (CXA1622) is with the analog signal processing and amplifying and drive loudspeaker 7 playbacks, realize time repeat playing recorded program content arbitrarily, be beneficial to user learning oneself and want the content learned.

The user also can be by the corresponding signal of microphone 9 inputs, through pre-amplification circuit 8 input signal is amplified, the analog signal of amplifying can directly drive loudspeaker 7 through power amplification circuit 5 and broadcast, also can behind D/A 3, deposit in the memory 4 (RK501), time spent broadcasts and gets final product, and it is quite convenient to use.

Mainly comprise an integrated circuit U4 (74HC138) among the utility model embodiment in the LCD 6, its two control ends E3 and VCC are connected on the mouth line TUNELED3 and STLED4 of microprocessor U1 (S1A0903X01) through resistance R 31, R34.

Claims

1, the broadcast receiver that has the memory sound-recording function, include: the digital radio reception unit (1) and the central control unit (2) of subsidiary antenna (11), the output of digital radio reception unit (1) is connected with central control unit (2), central control unit (2) is a single chip microcomputer system, comprise microprocessor (U1) and be solidificated in wherein software program, the power amplification circuit (5) that the output of central control unit (2) connects LCD (6) and drives loudspeaker (7), it is characterized in that: also be provided with memory (4) in the described wireless machine, memory (4) is connected with central control unit (2) in the machine through D/A (3).

2, the broadcast receiver that has the memory sound-recording function according to claim 1, it is characterized in that: the microprocessor (U1) of described central control unit (2) is with the mould/number port ADIN and the D/A port DAOUT of mouth line ROUT2 and LOUT1 difference connected storage (4), wherein the mouth line ROUT2 of microprocessor (U1) is through capacitor C 34, triode T11 is connected in the mould/number port ADIN of memory (4), and the mouth line LOUT1 of microprocessor (U1) is connected in the D/A port DAOUT of memory (4) through resistance R 34, and the D/A port DAOUT of memory (4) is connected in through capacitor C 42 on the port one 6 of integrated circuit (U2) of power amplification circuit (5) simultaneously.

3, the broadcast receiver that has the memory sound-recording function according to claim 1 is characterized in that: the input of described central control unit (2) also is connected with microphone (9) by pre-amplification circuit (8).

4, the broadcast receiver that has the memory sound-recording function according to claim 1 is characterized in that: described memory (4) can be DRAM or FLASH.