CN2419632Y - Portable bilinguistic newspaper reader for electronic network - Google Patents

Abstract

The utility model relates to a portable bilingual newspaper reader for electronic networks, which is formed by the connection of a machine casing, a panel and a circuit board, wherein the panel is arranged on the face of the machine casing, and the circuit board is arranged in the machine casing; the right side of the machine casing is provided with an earphone jack and a computer interface which are respectively connected with corresponding circuits of the circuit board; the panel is provided with a control key group, a display screen and a mode switching key which are respectively connected with corresponding circuits of the circuit board; a circuit is composed of a singlechip, a serial interface circuit, a memory, a control circuit, a display circuit, a D/A conversion circuit and an output protective circuit which are respectively connected with each other by respective signal lines. The utility model has the advantages of small size, light weight, less power consumption, good anti-vibration properties, strong anti-interference properties, convenient carrying and simple use.

Description

The bilingual Newspaper reading machine of portable electronic network

The utility model is the bilingual Newspaper reading machine of portable electronic network, belongs to digital speech compression, synthetic, identification, Anti-Jamming Technique, is again the daily culture daily necessities.

The conventional portable radio and tape player is that storage medium, magnetic head are the magnetoelectricity signal converter of recording, playback with the tape; Perhaps receive local radio wave broadcast.Owing to comprised parts such as magnetic, electricity and machinery in same device, therefore, traditional radio and tape player exists following main shortcoming and problem inevitably: (1) power consumption is big; (2) volume and weight can not be too little; (3) poor to shock protection; (4) antijamming capability is lower etc.In addition, the user positions also inconvenient to the voice messaging on the tape.

The purpose of this utility model be exactly for overcome and to solve existing radio and tape player be media with the tape and comprised that parts such as magnetic, electricity, machinery exist that power consumption is big, the big weight of volume is heavier, vibrationproof is poor, the shortcoming and the problem of voice messaging location difficulty etc. on the poor anti-interference, tape, a kind of power consumption of research and design is little, volume is little, in light weight, tonequality good, good in anti-interference performance, the bilingual Newspaper reading machine of portable electronic network that the information storage amount is big.

The utility model is realized by following technical proposals: the contour structures synoptic diagram of the bilingual Newspaper reading machine of portable electronic network as shown in Figure 1; Its circuit block diagram as shown in Figure 2; Its inside presets, the load operation software program flow chart is as shown in Figure 3 automatically; The program flow diagram of its interrupt service routine as shown in Figure 4; Its circuit theory diagrams are shown in Fig. 5～6.It is connected and composed jointly by casing, circuit board, panel, its circuit board is installed in the casing, panel is loaded on the casing front, the right side of casing is equipped with earphone jack 5 and computing machine serial line interface 2 and is connected with corresponding output protection circuit, serial interface circuit on the circuit board respectively: operating key group 3 is equipped with in the bottom of panel---fast key, broadcast/stop key, fast key, voice switch key, and be connected with control circuit respective point on the circuit board; The top of panel is equipped with LCDs 4 and is connected with corresponding display circuit on the circuit board, and the top of panel also is equipped with mode switching key 1 and is connected with corresponding control circuit respective point on the circuit board; Its circuit is connected and composed jointly by computing machine serial interface circuit, memory cell, single-chip microcomputer (high speed signal treatment circuit), control circuit, display circuit, D/A change-over circuit, control circuit, display circuit, D/A change-over circuit, output protection circuit, and its interconnected relationship is: single-chip microcomputer (high speed signal treatment circuit) is connected with serial interface circuit, memory cell, D/A change-over circuit, control circuit, display circuit respectively by serial line interface signal wire, storage signal wire, D/A switching signal line, control signal wire, display signal line respectively; Serial interface circuit is connected with computing machine by its signal cable line; The D/A change-over circuit is connected with holding circuit by analog signal line, and output protection circuit is connected with the output earphone by audio signal wire; Wherein: single-chip microcomputer (high speed signal treatment circuit) is by integration member IC ₃Constitute; Output protection circuit is by capacitor C ₂₀～C ₂₁, resistance R ₂₀～R ₂₁Connect and compose jointly; The D/A change-over circuit is by integration member IC ₁, capacitor C ₃₀～C ₃₈, crystal X ₁～X ₂Connect and compose jointly; Control circuit is by operating key S ₁～S ₆Connect and compose jointly; Serial interface circuit is by integration member IC ₂, capacitor C ₅₀～C ₅₄Connect and compose jointly, display circuit is by integration member IC ₅, U ₁, U ₂Connect and compose jointly; The storage monolithic is by the flash storing memory integration member IC that is not afraid of power down ₄Constitute.

Simple principle of work of the present utility model is as follows: the single-chip microcomputer in the circuit has sheet internal program storer and the data-carrier store of 16K, and dominant frequency reaches as high as 40MHz, is suitable for doing high-speed dsp, is a kind of price, the reasonable dsp chip of performance; Storage unit is flash memories (FKASH MEMORY), memory space is 4M * 8bits, high 64Kbytes is used for stored programme and the required code book of program, by hardware programming (the program circuit block scheme is seen Fig. 3) high 64K is made as protected mode, can only read and can not write, other parts are used to store the information data of download; Control circuit is made up of key groups; Display module is realized by SVM12232; The D/A of analog interface conversion realizes with chip piece, is the D/A conversion of 16 of two-ways, and the form of its digital code stream is consistent with the input format of serial port, is used with it and ADSP to reach the highest efficient; Serial line interface is used for level conversion, realizes the communication between computing machine and the singlechip CPU; Information data in the computing machine downloads in the storage unit through serial port, and when playing, synthetic processing module reads information from data-carrier store, and analyzes synthetic speech output.When system power-up, read-in programme is to ram in slice from storer for singlechip CPU, and program brings into operation after running through, and prepares flash memory is read and write; When being in when delivering to data in the storer, singlechip CPU is selected mode of operation according to the input of control circuit, the working method of control circuit is to produce an interruption when button is pressed, in interrupt service routine (the interrupt service routine process flow diagram as shown in Figure 4), singlechip CPU is read the PF mouth to determine being that button, and the function of button is respectively: 1. playback/stop: beginning to play voice from designated memory locations; 2. F.F.: following information first; 3. rewind down: on information first; (4) voice switch: national language one Guangdong language; (5) MODE: mode of operation is switched, and comprises play mode and downloading mode.Corresponding display circuit driver is arranged in interrupt service routine, and content displayed has three: (1) mode of operation: corresponding with button, comprise play mode, downloading mode; (2) work is carried out the time; (3) account for the ratio of whole storage spaces with storage space.

The utility model compared with prior art, following advantage and beneficial effect are arranged: (1) the utility model is owing to adopt electronic devices and components to constitute fully, do not comprise mechanical hook-up and magnetic media, so power consumption is little, volume is little, the utility model mainly is made up of several integrated packages, can be made on the same circuit board, reduce volume greatly; (2) the utility model is in light weight, owing to reduced the complexity of structure widely, has particularly lacked mechanical part, makes weight reduce greatly; (3) the utility model shock resistance is good, owing to be not with mechanical hook-up, has improved reliability; (4) the utility model is durable in use this year, and the serviceable life of electron device is more much longer than mechanical hook-up, and electron device the maintenance and safeguard aspect also much easier; (5) the utility model naturalness height adopts intelligent language analysis synthetic technology, makes the naturalness of synthetic speech signal and sharpness higher; (6) the utility model is a kind of ideal tools that can obtain the network information easily in daily life and work, has characteristics such as tonequality is good, information storage big, strong interference immunity; (7) the utility model is a kind of easy to carry, bilingual Newspaper reading machine of simple, the well behaved minitype portable electric network of use, by the various text messages in the downloaded network (bag news, commentary and novel or the like), synthetic speech signal output intelligently, and have mandarin and two kinds of synthetic speechs confessions of Guangdong language users selection; (8) the utility model does not only adopt mechanical hook-up and magnetic media fully, serve as the storage media also with the flash memory (Flash Memory) of not being afraid of power down, with the high-speed digital signal process chip is core devices, realizes that with recognition technology etc. full electronic, high-quality phonetic synthesis play in conjunction with digital voice compression technologies, digital anti-interference filtration technology, digital speech are synthetic.By preliminary estimation, if adopt the flash memory chip of 16 megabyte of about 100 yuan of prices, whole Newspaper reading machine has only a cigarette case size; It can store the information that surpasses 8 megawords, is equivalent to " Guangzhou Daily " or 8 cover " the semi-gods and the semi-devils " novels of one month.For phonetic synthesis, adopt advanced intelligent language analytical technology, according to trained language knowledge base automatic segmentation word and to carry out the word tone level sliding, improved the naturalness of synthetic speech.

Below Figure of description is further specified as follows: Fig. 1 is the contour structures synoptic diagram of the bilingual Newspaper reading machine of this portable electronic network; Fig. 2 is its circuit block diagram; Fig. 3 is that preset its inside, automatic load operation software program flow process block scheme; Fig. 4 is its interrupt service routine FB(flow block); Fig. 5～Fig. 6 is its circuit theory diagrams, and corresponding label point identical among each figure should interconnect.

Embodiment of the present utility model can be as follows: (1) is by design shown in Figure 1, processing and manufacturing the utility model casing, panel; For example optional with engineering plastics employing injection moulding process manufacturing casing, panel; (2) press Fig. 2 and Fig. 5～shown in Figure 6, set type with the computing machine wiring and make printed circuit board (PCB), screen components and parts then and carry out mounting circuit boards.For example: singlechip CPU can be selected the ADSP2181 of AD company for use, memory cell can be selected the Am29F032B flash memories of AD company for use, display circuit can be selected the SVM12232 display module for use, the D/A change-over circuit can be selected the ADSP1847 chip of AD company for use, serial interface circuit can be selected the ADM232 integration member for use, crystal X ₁Optional 24.576MHz; Crystal X ₂Optional 16.9344MHz; (3) carry out software programming by program circuit block scheme shown in Figure 3, import then or solidify in singlechip CPU; (4) earphone jack of being purchased 2, computing machine serial line interface spare 5, operating key group 3, LCDs 4, mode key 1 etc. are loaded on respectively on casing side and the panel, circuit board is installed in the casing, and connection is installed by the described annexation of top instructions, and power up debugging, just can implement the utility model preferably.

Claims (2)

1, the bilingual Newspaper reading machine of a kind of portable electronic network, it is characterized in that: it is connected and composed jointly by casing, circuit board, panel, its circuit board is installed in the casing, panel is loaded on the casing front, and earphone jack (1) is equipped with computing machine serial line interface (2) and respectively with output protection circuit, serial interface circuit are connected accordingly on the circuit board in the right side of casing; Operating key group (2) is equipped with in the bottom of panel---fast key, broadcast/stop key, fast key, voice switch key, and be connected with control circuit respective point on the circuit board; The top of panel is equipped with LCDs (4) and is connected with corresponding display circuit on the circuit board, and the top of panel also is equipped with mode switching key (5) and is connected with corresponding control circuit respective point on the circuit board; Its circuit is connected and composed jointly by computing machine serial interface circuit, memory cell, single-chip microcomputer, control circuit, display circuit, D/A change-over circuit output protection circuit, and its interconnected relationship is: single-chip microcomputer is connected with serial interface circuit, memory cell, D/A change-over circuit, control circuit, display circuit respectively by serial line interface signal wire, storage signal wire, D/A switching signal line, control signal wire, display signal line respectively; Serial interface circuit is connected with computing machine by its signal cable line; The D/A change-over circuit is connected with output protection circuit by analog signal line, and output protection circuit is connected with earphone by audio signal wire.

2, by the bilingual Newspaper reading machine of the described a kind of portable electronic network of claim 1, it is characterized in that described singlechip CPU is by integration member IC ₃Constitute; Output protection circuit is by capacitor C ₂₀～C ₂₁, resistance R ₂₀～R ₂₁Connect and compose jointly; The D/A change-over circuit is by integration member IC ₁, capacitor C ₃₀～C ₃₈, crystal X ₁～X ₂Connect and compose jointly; Control circuit is by operating key S ₁～S ₆Connect and compose jointly; Serial interface circuit is by integration member IC ₂, capacitor C ₅₀～C ₅₄Connect and compose jointly, display circuit is by integration member IC ₅, U ₁, U ₂Connect and compose jointly; The storage monolithic is by the flash storing memory integration member IC that is not afraid of power down ₄Constitute.

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