CN2497397Y

CN2497397Y - Digital recording/playing and word processing apparatus

Info

Publication number: CN2497397Y
Application number: CN 01264398
Authority: CN
Inventors: 于恩志; 魏裕政
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-29
Filing date: 2001-09-29
Publication date: 2002-06-26
Anticipated expiration: 2011-09-29

Abstract

The utility model relates to a digital recording/playback and word processing device which comprises a PCM coder and decoder, a vocoder, a memory I used for storing sound signals, a micro processor, an automatic gain amplifier and a filter; the utility model further comprises a handwriting/keyboard input device, a drive circuit, a coder, a recognition device used for recognizing the handwriting words input by the handwriting/keyboard device, a model memory device that stores word models, an input device that inputs the word model in the model memory device to the micro processor, and a memory II that stores the input words, a big screen display that displays the input words and the keyed directives.

Description

Digital record/playback and character processor

The utility model relates to and a kind ofly can carry out digital recording, playback and can carry out number record/playback and the character processor that the literal input is stored, handles, shown literal or data by hand input device.

Had pair sound to record/sound-track engraving apparatus of playback and literal stored and the device (as Wenquxing) of word processing in the prior art, but also do not had to record/playback again can the handwriting input literal and number record/playback and character processor that literal is handled.

The purpose of this utility model is exactly the number record/playback and the character processor that will provide a kind of portable can either record/playback again can the handwriting input literal and literal is handled.

The technical solution of the utility model is such:

The utility model comprises that a PCM codec, vocoder, one are used for the memory I of stored sound signal, a microprocessor, an automatic gain amplifier, a wave filter; Also comprise a hand-written/dish input media, driving circuit, a scrambler, an input media that is used for recognition device, a model memory storage of having stored verbal model, a verbal model with the model memory storage that the handwriting of hand-written/finger-impu system input is discerned are input to microprocessor, and the memory I I of the literal of a storage input, one show the large screen display of the instruction of the literal of input or key entry.

Following accompanying drawing has shown an embodiment of the present utility model.

Fig. 1 is the block scheme that shows digital record/playback of the utility model and character processor structural relation.

Fig. 2 is the electrical schematic diagram of digital record/playback of the utility model and the digital record/playback part of character processor.

Fig. 3 be the utility model hand-written/structural representation of finger-impu system.

Fig. 4 be the utility model hand-written/electrical schematic diagram of the driving circuit of finger-impu system.

Referring to accompanying drawing 1.The first half of accompanying drawing 1 is the record/playback part of digital record/playback and character processor; Key in instruction and handwriting input literal, store the word processing part of literal, display text or instruction to microprocessor when the lower part of accompanying drawing 1 is to use digital record/playback and character processor; Record/playback part and microprocessor of word processing partial common.

When after hand-written/finger-impu system is keyed in instruction, the voice signal that microphone 1 is gathered is input in the amplifier 2 and amplifies, the voice signal that amplifies through amplifier 2 is input in the AGC amplifier again and amplifies, the analog voice signal that amplifies through the AGC amplifier is imported into PCM codec 4 and carries out pulse code modulation (PCM), PCM serial digital voice signal after PCM codec 4 pulse code modulation (PCM) is imported in the

vocoder

5,5 pairs of serial digital voice signals of vocoder carry out the linear prediction compression, serial digital voice signal after being compressed stores in the memory I, and digital recording process has so just been finished.

In the time of playback, key in the playback instruction to hand-written/finger-impu system 10, the playback instruction of keying in is input in the microprocessor 6, microprocessor 6 sends the playback instruction to vocoder 5, vocoder 5 decompresses to the serial digital voice signal of storing in the memory I after compression according to the playback instruction, serial digital voice signal behind the decompress(ion) is imported into decoding in the PCM codec 4, be imported into filtering in the wave filter 7 through decoded analog voice signal, being input to amplifier 8 through filtered analog voice signal amplifies, emit sound through the analog voice signal that amplifier 8 amplifies through loudspeaker 9, so digital playback process has just been finished.

Referring to the latter half of accompanying drawing 1, hand-written/finger-impu system 10 be a kind of can either with handwriting mode import Chinese character, symbol, again can be according to the input media of existing computer keyboard input mode input characters.Hand-written/finger-impu system 10 is made of array switch, when keying in instruction in the key entry mode, keying in an array switch that is pressed is corresponding alphabetical pairing array switch, press and make switch be in closure state, the closure state of switch makes and the respective array output low level signal of driving circuit 11 is input in the microprocessor 6 behind encoded circuit 12 codings of the signal of driving circuit 11 outputs.So just keyed in instruction in the key entry mode.

When with the handwriting mode input characters, in the time of symbol, hand-written point presses the switch on the respective array on hand-written/finger-impu system 10, make switch be in closure state, the closure state of switch makes the respective array output low level signal of driving circuit 11, the signal of driving circuit 11 outputs is input to the identification literal, in the recognition device 15 of symbol, recognition device 15 is with the representative literal of driving circuit 11 inputs, the feature that the literal of storage meets in the signal of symbol and the model memory storage 13 compares, thereby judge the literal of handwriting mode input, symbol is any literal, symbol, the literal that to determine then, symbol is input among the memory I I and stores, and the literal that will determine, symbol shows by microprocessor 6 input large screen displays 14.

When checking the information of handwriting input more later, as long as key in instruction to hand-written/finger-impu system 10, microprocessor 6 is just according to the instruction of keying in, and the data presentation of reading storage from memory I I is on large screen display 14.

Advantage of the present utility model is: 1. and digital record/playback and character processor can either record/and playback can carry out word processing again, and be easy to carry.2. because the serial digital voice signal is carried out linear precompression, make that the data quantity stored of wanting reduces significantly, thereby prolonged record length that record length can reach several hrs.The utility model can either record/playback can use as notebook again, use so be well suited for the student.

Shown in Figure 2 is the electrical schematic diagram of the number record/playback part of digital record/playback and character processor.Vocoder adopts chip D6471-11 in this electrical schematic diagram, and storer adopts chip 29V1600RTS, and PCM encoder adopts TP3054DW.

Fig. 3 has shown the structure of hand-written/finger-impu system, and the board of this hand-written/finger-impu system and keyboard are one altogether.The board of hand-written/finger-impu system, keyboard are made up of two layers of special purpose film, the upper strata is defined character, U * V switch of the corresponding board/keyboard of each switch, and lower floor is the switch arrays that track constitutes, form a point of the corresponding hand-written character of each switch by M * N switch.

Figure 4 shows that the electrical schematic diagram of driving circuit.As shown in the figure, when singly-bound letter of input, the corresponding low level that is output as with the switch of pressing; And the corresponding high-low level that is output as with the switch of not pressing.

Claims

1. digital record/playback and character processor, partly form by number record/playback part and character processor, it is characterized in that comprising a PCM codec, a vocoder, a memory I that is used for the stored sound signal, a microprocessor, an automatic gain amplifier, a wave filter, also comprise a hand-written/dish input media, a driving circuit, a scrambler, one is used for recognition device that the handwriting of hand-written/finger-impu system input is discerned, a model memory storage of having stored verbal model, one is input to the input media of microprocessor with the verbal model in the model memory storage, and the memory I I of the literal of a storage input, the large screen display of the literal of a demonstration input or the instruction of key entry; The PCM codec is connected with vocoder, vocoder is connected with memory I, memory I, vocoder are connected with microprocessor, hand-written/dish input media is connected with driving circuit with microprocessor, driving circuit is connected with scrambler, recognition device, and recognition device is connected with the model memory storage, and the model memory storage is connected with input media with memory I I, memory I I is connected with microprocessor, and microprocessor is connected with large screen display.

2. digital record/playback as claimed in claim 1 and character processor is characterized in that vocoder adopts chip D6471-11, and storer adopts chip 29V1600RTS, and PCM encoder adopts TP3054DW.

3. digital record/playback as claimed in claim 1 and character processor is characterized in that the board of hand-written/finger-impu system and keyboard are one altogether; The board of hand-written/finger-impu system, keyboard are made up of two layers of special purpose film, the upper strata is defined character, U * V switch of the corresponding board/keyboard of each switch, and lower floor is the switch arrays that track constitutes, form a point of the corresponding hand-written character of each switch by M * N switch.