CN1040274C

CN1040274C - Wireless broadcast system of literal pattern and data information

Info

Publication number: CN1040274C
Application number: CN93110539A
Authority: CN
Inventors: 李嘉骏
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-01-18
Filing date: 1993-01-18
Publication date: 1998-10-14
Anticipated expiration: 2013-01-18
Also published as: CN1090106A

Abstract

The present invention relates to a broadcast system of digital information, such as characters, patterns, stocks, weather, time, etc., and a device thereof, and the broadcast system of digital information is characterized in that a character, pattern and digital information broadcast station is established, radio waves which are coded and pulse-modulated by various kinds of character, pattern and digital information are transmitted, a receiving device receives the radio waves, characters and patterns are displayed and stored after treatment, and various kinds of data are displayed. The present invention can duly transmit various pattern and character contents reported by newspapers and periodicals, such as news, government announcements, advertisements, economic information, writings, etc., in the radio wave coverage area of character, pattern and digital information broadcast stations and can also continuously announce various kinds of digital information frequently changed, such as stock markets, meteorologic conditions, atmospheric environment, population, calendars, time, etc.

Description

Literal, pattern and data message wireless broadcast system

The present invention relates to a kind of wireless broadcast system.

Wireless broadcast system mainly contains voice broadcast service system (radio broadcasting radio station) and broadcast of images system (television station) in the world at present.Basic principle of its first kind of system (radio broadcasting radio station) and implementation process are existing in " infrastructure radio " (appoint big rich Zhao in moral official river to build the people and write Zhejiang education publishing house in December, 1984) 370-371 page or leaf clearly to be set forth: sound is that frequency is tens of conspicuous to thousands of conspicuous mechanical oscillation.How sound is sent out? at first by an acoustic-electric conversion equipment this mechanical oscillation are converted to electric oscillation, microphone has just played this effect.Then this audio signal and a high frequency sinusoidal signal are added modulators modulate simultaneously, become a high-frequency signal that contains audio-frequency information, be called modulated signal or modulated wave, again after high-frequency amplifier amplifies by transmitting antenna with the electromagnetic wave form to space radiation.This has just realized the emission of signal.At acceptance point, reception antenna is intercepted and captured radio wave and is changed it into electromotive force, utilize resonant tank can from the signal of various different frequencies, select needed signal, from modulated high frequency electrical signal, restore audio signal by wave detector then, after amplifier amplifies, promote speaker operation, realized the reception and the reduction of information.

The basic principle of second kind of system (television station) and implementation process are at " TV, the frequency modulation transmission technology " also existingly in (Sun Qingyou summer industry pine write Chinese radio and television publishing house in December, 1992) first page clearly set forth: in television stadio, with television camera the scene that will transmit is for conversion into image signals corresponding, it is amplified and does the composite video signal of some technology processed (adding composite blanking pulse and composite synchronizing pulse) back formation standard through the equipment of TCO technical control office, via satellite, microwave relay or vision cable are delivered in the television video transmitter, way with amplitude modulation " is added it " on the hyperfrequency radio wave (being carrier wave) of suitable emission, forms the amplitude-modulated signal of image.The sound accompaniment of TV also becomes the signal of telecommunication of corresponding sound simultaneously through microphone, after the amplification of the repeater in the sound accompaniment control desk and some other technical finesse, via satellite, microwave relay or voice-frequency cable are delivered in the television sound transmitter, adopt the way of frequency modulation that it " is added " on another hyperfrequency radio wave (being carrier wave) of suitable emission, form the FM signal of sound accompaniment.The amplitude-modulated signal of television image and the FM signal of television field frame are delivered to television transmitting antenna together by duplexer.Give off the radio wave that has TV signal, i.e. electromagnetic wave in the air by the sky alignment.

After television receiving antenna is received the radio wave that has TV signal, again it is become electric current and send into television receiver, in receiver to its amplification, frequency conversion, detection and other technical finesse, their reduction are become the picture-and-sound signal, phosphor screen by picture tube demonstrates image, and loud speaker is emitted sound.

TV and broadcasting station with image and sound disseminate news, report, music, artistic works, life has been enriched in convenient production and social activities.But people also need a large amount of literal and data message in production, life and social activities, and the propagation of present literal and data message is mainly by newpapers and periodicals, magazine, but problems such as workload is big, the cycle is long that publication newpapers and periodicals, magazine have can not blaze abroad literal and data message in time.TV and broadcasting station diffuse information and have rapidly advantage timely, but its propagating contents is difficult for learning off and is difficult to record, consults.

Purpose of the present invention is exactly in order to address the above problem, and proposes a kind of literal, pattern and data message wireless broadcast system of e-newspaper formula.This system launches the binary coding of literal, pattern and data message to high frequency carrier modulation back, receiver is reduced into literal, pattern and data after to the high frequency radio wave demodulation and shows and can store, data messages such as the meteorology that news, report, literary works and the public who people is understood in time propagated by literal and pattern is concerned about, stock, environment, time.

Technical solution of the present invention:

A kind of literal, pattern and data message wireless broadcast system, it is made up of radiating portion and receiving unit.Wherein radiating portion includes carrier oscillator, modulator, power amplifier and transmitting antenna; Receiving unit includes reception antenna, tunable receiver, demodulator and amplification and rectification circuit, it is characterized in that:

In a, the radiating portion, the output of picture and text encoder, stock encoder, meteorological encoder and calendar, time counter is gone here and there out corresponding connection of parallel input of shift register with incorporating into; The controlled end of each encoder sum counter all is connected with one road output of control impuls distributor circuit; The control impuls of control impuls distributor circuit and calendar, time counter and count pulse provide by the pulse generator of oscillator and frequency dividing circuit composition; The in addition two-way output of control impuls distributor circuit is gone here and there out the controlled end of shift register and waveform transformation circuit and is connected with incorporating into respectively, incorporate into and go here and there out the serial output terminal of shift register and be connected with the input of waveform transformation circuit, it delivers to the waveform transformation circuit with picture and text, stock, meteorology, calendar, time signal successively according to the pulse control command, produce picture and text and data message coded pulse and deliver to modulator, high frequency carrier modulation back is launched from antenna.

In b, the receiving unit, reception antenna and tunable receiver are received the radio wave that has coded pulse, obtain coded pulse signal after demodulator and amplification and rectification circuit processing; The output one tunnel of amplification and rectification circuit connects the input of decoding circuit, and another road connects the input of encoding control circuit; A road of the output of decoding circuit and encoding control circuit exported, and connects the input and the controlled end of SI PO shift register respectively; The coded pulse of decoding circuit after with receiving demodulation is reduced into data message and sends into SI PO shift register successively serially; The parallel output terminal of SI PO shift register respectively with the picture and text stored drive circuit with latch, decoding, drive circuit is corresponding is connected; The picture and text stored drive circuit with latch, the output of decoding, drive circuit is connected with stock market display, weather information display, calendar time display with image-text display respectively; Another road output of encoding control circuit respectively with the picture and text stored drive circuit with latch, the controlled end of decoding, drive circuit is connected, thereby, show respectively the requirement of the data of SI PO shift register and line output according to the control impuls of encoding control circuit.

System of the present invention has the characteristics in time and widely that diffuse information, and the function of storage literal and pattern is arranged, and is a kind of e-newspaper, both can in time collect and preserve the bulk information data, can consult at any time again.In addition, broadcast system of the present invention is also broadcasted the digital information of the continuous variation that the public is concerned about: as time signal, stock market, meteorological condition, atmospheric environment, population support etc.The receiving system of this system can provide accurate and synchronous timing for people, and can also participate in economic activity such as stock exchange for people, understand meteorological condition, propaganda is preserved the ecological environment etc. provides bigger convenience.

Fig. 1 a is a radiating portion theory diagram of the present invention;

Fig. 1 b is a receiving unit theory diagram of the present invention;

Fig. 2 is literal of the present invention, calendar, time pulse composition diagram;

Fig. 3 is an emitter electrical schematic diagram of the present invention;

Fig. 4 is reception of the present invention and encoding control circuit electrical schematic diagram;

Fig. 5 is a time synchronisation receiver electrical schematic diagram of the present invention;

Fig. 6 is a picture and text receiving system electrical schematic diagram of the present invention;

Fig. 7 is stock market of the present invention and weather information receiving system electrical schematic diagram;

Fig. 8 is a literal receiving system electrical schematic diagram of the present invention;

Fig. 9 is the each point voltage oscillogram in the device that transmits and receives of the present invention.

The present invention sets up literal, pattern and data message broadcasting station, form coded pulse by literal, pattern and data message, if in adopting, shortwave broadcasting, therefore the coded pulse frequency is no more than 45KHz, and can establish the coded pulse frequency is 4096Hz, and promptly transmitting station is launched one group of radio wave through 4096 coded pulses modulation each second, after receiving system is received radio wave, through handling, storage and display text, pattern respectively demonstrate the information of various numerals.As long as in the coverage of transmitting station electric wave, arbitrary receiving system all can receive literal, pattern and data message at any time.

Emitter of the present invention such as Fig. 1 a, the picture and text encoder resolves into pattern binary code, text transform is become digital code; Meteorologic signal is transformed into digital quantity by mould one number conversion; Stock certificate data deposits encoder in; The pulse per second (PPS) counting that calendar, time counter are sent here frequency dividing circuit, record month, day and the time, minute, second.1), controlled encoder, counter go here and there out shift register and send data to incorporating into concurrently in batches produces high-frequency impulse by oscillator and behind the frequency dividing circuit frequency division, send the control impuls distributor circuit, produce control impuls by control circuit and carry out following control:; 2), control is incorporated into and is gone here and there out shift register parallel input data is become serial data output; 3), the control waveform translation circuit is transformed into satisfactory coded pulse with serial data.Carrier oscillator produces high frequency carrier, and the coded pulse that wave converter produces is modulated the amplification back by modulator to carrier wave and launched from antenna T1

Receiving system such as Fig. 1 b, tunable receiver select encoded pulse modulated carrier wave from the radio wave that enters reception antenna T2, revert to coded pulse signal through separating mediation amplification shaping.Coded pulse one tunnel reverts to serial data through decoding circuit and delivers to the SI PO shift register input; The encoded control circuit in another road produces various control impuls: 1), produce shift pulse, serial data is moved into SI PO shift register, and from its parallel output terminal output; 2), produce latches command, the image, text and data that picture and text memory stores shift register is sent here; Make stock, meteorology and the time data of the output of latches shift register.Display is display pattern, literal, stock market, weather information, calendar and time respectively.

The concrete course of work of the present invention is as follows, is that 4096HZ is an example with the launching code pulse frequency, pulse can be carried out plurality of distribution, now transmission content is arranged to:

1, transmitting station per second emission pattern and Word message are five kinds, and every kind of pattern per second launched delegation's information, and every row accounts for 400 pulses, and every kind of literal per second sends 5 words, 16 pulses of every word, and pattern is 2: 1 by the ratio of width to height, then per 200 seconds replacing one width of cloth patterns.

2, stock information can send closing price yesterday, yesterday volume of business, modern opening price, modern highest price, modern lowest price, current price, the present 8 kinds of data such as volume of business, broadcast same a kind of data of 16 B shareBs each second, can finish same a kind of data of 256 B shareBs 16 seconds, finish 8 kinds of data of 256 B shareBs in 128 seconds.Receiving system can be made display type in turn, the stock of can choosing any one kind of them during use, and per 16 seconds a kind of data of conversion are gone round and begun again.Make the investor can both understand quotations on the stock market with the place at any time.

3, transmitting station can be launched the data such as meteorology, atmospheric environment, population support in 256 cities and area.Weather information comprise the highest temperature, the lowest temperature, at that time temperature, atmospheric pressure, relative humidity, at that time with following weather conditions, at that time with following wind direction, wind-force and wind speed; Atmospheric environment information can send data such as dust and content of sulfur dioxide.Data such as meteorology, atmospheric environment, population support are divided into 4 groups, send one group of information in 16 cities, district each second, finish one group of information in 256 cities, district 16 seconds, finish the full detail in 256 cities, district 64 seconds, go round and begin again.The information rotations such as meteorology that receiving system can be chosen a city, district wantonly show.

4, each second launched one group of time encoding pulse by transmitting station, and the time encoding packet of pulses contains public affairs, moon month, day, week and the time, information such as minute, second.Receiving system shows foregoing, and not only timing is accurate, and can also accomplish that each receiver shows time synchronized.

5, according to above-mentioned arrangement redundance pulse position still, also can send Word message.

Coded pulse is adopted and is transferred the pulsewidth form, and the wide person of pulse represents " 1 ", and narrow person represents " 0 ".The composition form of coded pulse is as shown in Figure 2: Fig. 2 (a) is a transmitted pulse composition diagram in each in second; Fig. 2 (b) is a kind of picture and text pulse composition diagram, and wherein the pattern pulse is 400,80 of literal pulses.In order to control the switching of display pattern, be provided with a switch pulse, when switch pulse was " 0 ", the expression displaying contents was constant; Represent switching display content during for " 1 ".In order to distinguish facsimile signal and various data-signal, be provided with two difference pulses: with " 00 " express time pulse; " 01 " represents meteorological pulse; The pulse of " 11 " expression stock; " 10 " presentation graphs context dashes.Other has 21 strobe pulses, is used for selecting to show a kind of (every kind of picture and text have different strobe pulses) in five kinds of picture and text, during receiving system is only inserted with certain picture and text strobe pulse is consistent data, just can receive this kind facsimile signal, practicable paid reception.Separate at interval with the no signal that accounts for two pulse positions between two kinds of picture and text pulses, every kind of picture and text pulse accounts for 506 pulse positions like this, and five kinds account for 2530 pulse positions altogether.

Fig. 2 (C) is every B shareB information pulse composition diagram.22 of wherein every B shareB data pulses; 4 of the classification pulses of expression stock certificate data kind; 8 of strobe pulses (representing that with 8 systems maximum number is 377) can be selected 256 B shareBs; 2 of difference pulses; Two B shareBs are interpulse have account for 2 pulse positions no signal at interval.Like this, every B shareB accounts for 38 pulse positions, broadcasts 16 B shareB information each second, accounts for 608 pulse positions altogether.

Fig. 2 (d) is the weather information pulse composition diagram in each city or area.Wherein the weather information pulse is 34,4 of the classification pulses of expression weather information kind; 8 of strobe pulses also can be selected 256 cities, district; 2 of difference pulses; No signal accounts for 2 pulse positions at interval.The weather information in each city, district accounts for 50 pulse positions, broadcasts the weather information in 16 cities each second, accounts for 800 pulse positions altogether.

Fig. 2 (e) is the time pulse composition diagram.Wherein the literal pulse is 112, can broadcast 7 of Chinese characters each second; 6 of unnecessary pulses; 2 of the classification pulses of expression displaying contents; Calendar, 34 of time pulses (calendar day, the moon and lunar calendar day, the moon send in turn and account for 11 pulses, and week is represented in 3 pulses, and when 6 pulses were represented, branch and second, each was represented with 7 pulses); 2 of difference pulses; No signal accounts for 2 pulse positions at interval.Amount to 158 pulse positions.

In the emitter of system of the present invention, picture and text encoder, stock encoder, meteorological encoder can be made of computer, picture and text, stock, can be input in the computer by keyboard, data line, meteorological data can be passed through mould by transducers such as temperature, humidity, air pressure--and number conversion becomes digital quantity input computer.As shown in Figure 3: the picture and text encoder decomposes by 400*200 pixel the pattern that will send, and 400 pixels of every row are by being " 0 ", black binary digit amount for " 1 " in vain, and per 8 bytes deposit Computer I C104 in; IC101 also to the literal that will launch by Iso code, two bytes of every word are sent into Computer I C104.

IC102 deposits each data of 256 B shareBs in the built-in storage of Computer I C104 in.

IC103 deposits the weather information in 256 cities and area in the internal memory of Computer I C104 in, and atmospheric environment and demographic data are also sent in the IC104 internal memory by IC103.

Above-mentioned data address in order leave in the internal memory of IC104, Computer I C104 will guarantee to export each second 5 row pattern data (five kinds of patterns, every kind of delegation), a certain meteorological data in 25 character codes (five kinds of literal, every kind 5 word), every kind of data of 16 B shareBs and 16 cities, district.

IC105 incorporates into to go here and there out shift register (model can with 4014), and it converts each byte (8 bit data) of Computer I C104, output to serial signal from its Q7 end output.IC106 incorporates into to go here and there out shift register (model can with 4014), and its parallel input D0--D7 connects low level, and serial input terminal DS connects high level.Initial condition, IC105 accepts a byte data of IC104 output, and the inner Q end of IC106 is low level, its Q7 output low level, this low level process or door IC116 are added to string and the end of convert M of IC105 and IC106.When shift pulse is added to the CP end, IC105 and IC106 are shifted, " 1 " signal of the DS end of IC106 progressively moves into, " 0 " signal that replaces Q0--Q7 Central Plains fork-like farm tool used in ancient China, when Q7=1, the eight bit data that IC105 just in time sends IC104 here is all exported serially from the Q7 of IC105, is added to or door IC119 input.Because the Q7 of IC106 output high level, the M end that makes IC105 and IC106 is for high level, for IC105 parallel receive new data, IC106 parallel receive " 0 " signal are prepared.This moment, the M end of IC104 was a high level also, made new eight bit data of IC104 output be added to the input of IC105.The Q7=1 of IC106 makes IC116 output high level, will open with door IC117, allows the pulse T (f=32768Hz) that comes from frequency divider IC108 pass through, and process or door IC118 are added to the CP end of IC105 and IC106 again, make them receive parallel signal.After IC106 received " 0 " signal, its Q7 output became low level, makes the IC116 output low level, close IC117, IC105 and IC106 transfer Serial Control to simultaneously, when shift pulse D is added to the CP end by IC118, IC105 and IC106 carry out serial shift again, and data are exported.

Above-mentioned effect is to transmit once by every eight bit data, and for stock certificate data, because of only accounting for 36 pulses, the 5th byte has only 4 digit pulses, after the 4th bit data output of the 5th byte, just in time no signal arrives at interval, at this moment the output signal C of shift pulse generator IC114 is low level (waveform is seen Fig. 9--3), inverter ic 115 output high level, this high level is through behind the IC116, one the tunnel is added to the M end of IC105, IC106 and IC104, makes IC104 output new data, IC105 and IC106 prepare to receive parallel data; Another road is added to the input with door IC117, and pulse T holds by the CP that IC117 and IC118 are added to IC105 and IC106, and IC105 receives new data, and IC106 receives " 0 " signal.After no signal finished at interval, C was a high level, the IC115 output low level, and IC105 begins again the new data serial is exported.

IC107 is an oscillator, is 8.3886MHz as frequency of oscillation, and then producing frequency behind frequency divider (IC108) 8 frequency divisions is the pulse T of 32768Hz, and producing frequency through 11 frequency divisions is the pulse A of 4096Hz, and producing frequency through 23 frequency divisions is the pulse per second (PPS) of 1Hz.Pulse per second (PPS) is added to calendar, time counter group IC109 (available 45 18) input, IC109 counting, record public affairs, moon month, day, week and the time, minute, second.These data are added to incorporate into goes here and there out the parallel input of shift register IC110 (model can with 4014).

Copy editor's machine IC111 deposits character code in Computer I C112 internal memory in order, and the code that IC112 takes out 14 bytes (7 Chinese characters) each second is in order sent into to incorporate into and gone here and there out the parallel input of shift register IC113 (model can be 4014).

IC114 is the shift pulse generator, and pulse A is added to the input of IC114, and the IC114 internal counter is according to the requirement of picture and text, stock and the shared umber of pulse of weather information, sends shift pulse D (waveform is seen Fig. 9--4).When internal switch K1 closure, K2 beat to high level, shift pulse D was added to the CP end of IC105, IC106, IC110, IC113, and IC105 and IC106 carry out serial shift.Because K2 beats to high level, the M end of IC110, IC112 and IC113 makes IC110 and IC113 be in the parallel receive state, the character code that IC112 output is new for high level.Pulsed D is added to the CP end of IC110 and IC113, makes IC110 receive calendar, time data, and IC113 receives character code.In each second, after the shift pulse D that IC114 produces all shifted out the weather information in 5 kinds of picture and text, 16 B shareBs and 16 cities, district, K1 disconnected, and stops to send shift pulse to IC105 and IC106.K2 beats to low level, and IC110 and IC113 transfer serial shift to, under the effect of pulsed D, literal and the time data Q end from IC113 is shifted out, and is added to the input of IC119.After literal and time data all shift out, the K1 closure of IC114, K2 beats to high level, and IC105 begins to export the data such as picture and text that next second should send, and IC110 and IC113 transfer the reception parallel data to.

Or door IC119 first signal of sending here of the Q7 end of output IC105 in a second, the signal that the Q end of back output IC113 is sent here, both synthetic complete serial data G (waveform is seen Fig. 9--5).Monostable IC120, with door IC121, IC122 and or door IC123 form pulse conversion circuit; Pulse A (see Fig. 9--1) becomes narrow pulse signal B (waveform is seen Fig. 9--2) behind monostable circuit IC120; Pulse B and the pulse C that produced by IC114 (see Fig. 9--3) are added to the input with door IC122, obtain pulse E (waveform is seen Fig. 9--6) at output; String graphic data G and shift pulse D are added to the input with door IC121, obtain pulse F (waveform is seen Fig. 9--7) at its output; Pulse E and F through or the synthetic coded pulse K (waveform is seen Fig. 9--8) that obtains of door IC123, pulse K includes broad pulse (" 1 " signal), burst pulse (" 0 " signal), no signal (control signal) at interval, has finished the conversion of various literal, pattern, digital information.

Carrier oscillator IC124 produces high frequency carrier, and modulator IC125 finishes the modulation of coded pulse K to carrier wave, and the carrier wave after the modulation amplifies the back through amplifirer IC126 and launches from antenna T1.

Concrete receiving system Fig. 4 of the present invention--8, its reception, encoding control circuit are as shown in Figure 4.Tunable receiver is selected the high frequency carrier of encoded pulse K modulation from the radio wave that antenna T2 receives, amplify shaping and obtain coded pulse K (waveform is seen Fig. 9--8) through separating to be in harmonious proportion.Coded pulse K one tunnel send integrating circuit, obtains integral voltage L (waveform is seen Fig. 9--9) on integrating capacitor C, and L is added to the input of voltage identificating circuit (model is 40106).When coded pulse K is added on the integrating circuit, the voltage height that the broad pulse of expression " 1 " produces on capacitor C, energy trigger voltage discriminator circuit makes its output high level; The voltage that produces on capacitor C of burst pulse of expression " 0 " is low, can not the trigger voltage discriminator circuit, and its output still is low level.Like this, obtained a pulse M (waveform is seen Fig. 9--10) who has eliminated burst pulse and broad pulse has been carried out time-delay at the output of voltage identificating circuit.Pulse M exports as serial data.

Coded pulse K obtains K (waveform is seen Fig. 9--11) after anti-phase, and K exports as shift pulse.

Oscillator produces the pulse V that frequency is 16384Hz (waveform is seen Fig. 9--12), and the rolling counters forward end is sent in this pulse one tunnel, and another road output is used for receiving system.

The return-to-zero end CR of counter meets coded pulse K, when K is high level, and the counter return-to-zero; K is low level hour counter counting.At ordinary times, low level is held time shorter between per two pulses of pulse K, counter can not count 4, have only when no signal arrives at interval, low level is held time longer, the high-order output Q3 of counter can export high level, and making Q3 behind inverter is low level (waveform is seen Fig. 9--13), the control signal output that this low level arrives at interval as no signal.

The reception of calendar, time is finished by synchrotimer, as shown in Figure 5.IC201 receives controller, and the shift pulse K of its output is added to the CP end of SI PO shift register IC202, IC203 and IC204 (model can with 4015), and the DS that serial data M is added to IC202 holds.When the current potential of K during by low uprising, if M is a low level, then will " 0 " signal immigration IC202; If M is a high level, then " 1 " signal is moved into IC202.Like this, under the effect of K, serial data M progressively moves among IC202, IC203 and the IC204, and exports from their parallel output terminal.IC202 is two bit shift register, after difference pulse " 00 " enters IC202, or door IC205 output low level, be added to or door IC206 input.After the difference pulse, no signal arrives at interval, and the Q3 output low level also makes the IC206 output low level.This low level is added to and latchs, the S end of decoding, driver IC 207 and IC208 (model can with 4511): (1), make IC207 receive calendar, the time signal that appears at the IC203 output, and driving display IC209 demonstrates calendar and time data; (2), IC208 receives the gregorian and lunar calendar sorting signal that IC204 exports, public, the lunar calendar sign of driving display IC210 demonstration.After the no signal interval, the Q3 saltus step is a high level, it is high level that IC206 exports also saltus step, the signal latch that IC207 and IC208 will be received before S holds saltus step to be high level, make the display video data stable, receive difference pulse " 00 " once more, when Q3 is low level simultaneously, just change displaying contents up to IC202.

Picture and text receiver of the present invention is as shown in Figure 6: IC301 receives controller, when no signal arrives at interval, the Q3 output low level, be added to the address reset terminal of buffer IC307, make the memory cell of the address pointer sensing initial address of IC307, after the no signal interval, buffer IC307 begins to store in order data from initial address.Shift pulse K and serial data M are added to CP end and the DS end of SI PO shift register IC302 and IC303 (model can with 4015) respectively.Under the effect of K, serial data progressively moves among IC302 and the IC303 respectively, and exports from their parallel output terminal.IC304 incorporates into to go here and there out shift register (model can with 4014), and its parallel input receives " 0 " signal, and serial input terminal receives " 1 " signal.

Initial condition, IC304 internal output terminal Q is low level, its Q7 is output low level also, this low level by or the door IC305 be added on the string and control end M of IC304, make IC304 be in the serial shift state.Shift pulse K is added to the CP end of IC303, and by or door IC306 be added to the CP end of IC304, make their synchronous shift, " 1 " signal of the DS end of IC304 progressively moves into, when the 8th shift pulse arrives, the Q7 saltus step is a high level, and this moment, IC303 just in time moved into a byte (eight) data.The high level of Q7 output is added to buffer IC307 control end, makes it receive also the parallel output signal of address storage IC303 in order.Simultaneously, the high level of Q7 makes IC304 become the parallel receive state by the M end that IC305 one tunnel is added to IC304; Open and a door IC308 on another road, allows the pulse V of IC301 output pass through, and through or door IC306 be added to the CP end of IC304, make IC304 parallel receive " 0 " signal, after IC304 received " 0 " signal, its Q7 end became low level immediately, and this low level makes: (1), IC304 transfer the serial shift state to; (2), close IC308, pulse V can not be passed through; (3), IC307 stops to receive the output signal of IC303.When the next pulse of K arrived, IC303 and IC304 began to receive the work of a new byte data again.

IC302 is 24 SI PO shift registers, its output Q23 output switch pulse signal, Q22--Q2 output strobe pulse signal, Q1, Q0 output difference pulse signal.IC309 is 23 mask registers (available 4019), and its lowest order Q0 deposits " 0 " signal, and inferior low level Q1 deposits " 1 " signal (because picture and text difference pulse is " 10 "); Q22--Q2 deposits code data.After serial data enters IC302, the IC302 dateout is just in time deposited data when conforming to IC309, XOR gate IC310 (model can with 4070) output low level, be added to or door IC311 input, arrive the Q3 output low level of IC301 this moment at interval as no signal, this low level effect has 3: (1), through the anti-phase high level that obtains of IC319, make IC304 enter the parallel receive state by IC305, behind parallel receive " 0 " signal, its inner Q end is low level; (2), be added to buffer address reseting controling end, with the memory cell of IC307 address pointer sensing initial address, for reception next group image, text and data is prepared; (3), be added to the input of IC311, if this moment the IC310 output low level, also output low level of IC311 then.The low level one tunnel of IC311 output is added to the control end of built-in storage IC312, and the data that begin backward totally 60 memory cell from initial address among the IC307 are called among the IC312; Another road is added to the control end of latch IC313 (model can with 4042), makes IC313 receive the Q23 output signal of IC302.No signal at interval after, the Q3 output high level of IC301, an or door IC311 also exports high level makes IC313 stop to receive the output signal of the Q23 of IC302, the input signal before will stopping to receive latchs, to guarantee stable output.Generally speaking, the equal output low level of latch IC313, have only when last column of a width of cloth pattern is broadcasted, IC313 just exports high level, and this high level is called in the width of cloth pattern data among the internal memory IC312 among the pattern displaying buffering area IC314, and pattern device IC315 switches the new pattern of demonstration one width of cloth, the literal that needs demonstration, send character code by internal memory, from character library IC316, access word lattice and deliver among the IC317 of display buffer, demonstrate literal by the literal display.

Literal and pattern receiver have and show broadcast content immediately and show two kinds of memory contentss that concrete control is finished by picture and text process computer software.

Stock market and weather information receiver are as shown in Figure 7.Except that shift register figure place difference (because of both coded pulse number differences), structure is all identical with action principle.IC401 receives controller, shift pulse K is added to the CP end of SI PO shift register IC402, IC403 and IC404 (model can with 4015), serial data M is added to the DS end of IC402, under the effect of K, serial data progressively moves among IC402, IC403 and the IC404, and exports from their parallel output terminal.Mask register IC405 (model can with 4019) has city, area code that the stock code that will show maybe will show weather information by by key control, and display IC406 shows the code that selector is selected.The code of IC405 is added to the input of XOR gate IC407 (model can with 4070), if just in time conform to the difference pulse with the strobe pulse that IC402 receives, XOR gate IC407 output low level then, arrive at interval as no signal this moment, the Q3 output low level, be added to or the input of door IC408 the IC408 output low level with the low level of IC407 output.The output signal that this low level makes and latchs, decoding, driver IC 409, IC410 (model can with 4511) receive IC403, IC404.After the no signal interval, the Q3 saltus step is a high level, the output of IC408 also saltus step is high level, the signal latch that IC409 and IC410 will be received before S holds saltus step to be high level, when the strobe pulse that receives up to IC402 conforms to the selector data with the difference pulse data, just change latch content.IC412 is driven by IC410, shows stock or weather information data, and IC411 is driven by IC409, and which kind of data what display receiver received is.

Literal receiver of the present invention as shown in Figure 8.The literal receiver receives 7 literal each second, and it constitutes most of identical with the picture and text receiver with action principle.Among Fig. 8 among integrated circuit (IC) 501--IC519 and Fig. 6 the action principle of IC301--IC319 basic corresponding identical, difference have following some: (1), IC502 are two bit shift register, after IC502 receives difference pulse " 00 ", no signal arrives at interval, the Q3 output low level, like this, or three inputs of door IC511 are low level, its output also is low level, this low level only is added to the control end of built-in storage IC512, and the data of 14 bytes beginning from initial address among the buffer IC507 are called in the IC512; (2), because of pattern-free shows, so cancelled latch IC513, pattern displaying buffering area IC514 and pattern device IC515; (3), because of receiving 7 Chinese characters each second, so buffer is only kept in the data of 14 bytes.

Claims

1, a kind of literal, pattern and data message wireless broadcast system, it is made up of radiating portion and receiving unit, wherein radiating portion includes carrier oscillator, modulator, power amplifier and transmitting antenna, receiving unit includes reception antenna, tunable receiver, demodulator and amplification and rectification circuit, it is characterized in that;

A, in the radiating portion, the picture and text encoder, the stock encoder, meteorological encoder and calendar, the output of time counter is gone here and there out the corresponding connection of parallel input of shift register with incorporating into, the controlled end of its each encoder sum counter all is connected with one road output of control impuls distributor circuit, control impuls distributor circuit and calendar, the control impuls of time counter and count pulse provide by the pulse generator of oscillator and frequency dividing circuit composition, the in addition two-way output of control impuls distributor circuit is gone here and there out the controlled end of shift register and waveform transformation circuit and is connected with incorporating into respectively, incorporate into and go here and there out the serial output terminal of shift register and be connected with the input of waveform transformation circuit, it according to the pulse control command successively with picture and text, stock, meteorological, calendar, time signal is delivered to the waveform transformation circuit, produce picture and text and data message coded pulse and deliver to modulator, behind power amplifier from transmission antennas transmit;

B, in the receiving unit, reception antenna and tunable receiver receive the radio wave that has coded pulse, obtain coded pulse signal through demodulator and amplification and rectification circuit processing, the output one tunnel of amplification and rectification circuit connects the input of decoding circuit, another road connects the input of encoding control circuit, one tunnel output of the output of decoding circuit and encoding control circuit connects the input and the controlled end of SI PO shift register respectively, the coded pulse of decoding circuit after with receiving demodulation be reduced into data message successively serial send into SI PO shift register, the parallel output terminal of SI PO shift register respectively with picture and text stored drive circuit and latching, decoding, should connect during drive circuit, picture and text stored drive circuit and latching, decoding, the output of drive circuit respectively with image-text display and stock market display, the weather information display, the calendar time display connects, another road output of encoding control circuit respectively with the picture and text stored drive circuit, latch, decoding, the controlled end of drive circuit connects, thereby the data of SI PO shift register and the line output control impuls according to encoding control circuit is shown respectively.

2, by the described literal of claim 1, pattern and data message wireless broadcast system, it is characterized in that picture and text encoder in the radiating portion, stock encoder, meteorological encoder are made of same microcomputer and keyboard thereof, picture and text, stock, meteorological data are input in the microcomputer by keyboard.

3,, it is characterized in that meteorological encoder also can be made of transducer such as temperature, humidity, air pressure and microcomputer by the described literal of claim 2, pattern and data message wireless broadcast system.

4, by the described literal of claim 1, pattern and data message wireless broadcast system, it is characterized in that; Reception in the receiving unit and encoding control circuit are made up of tuning reception, demodulation, amplification and rectification circuit, integrating circuit, voltage identificating circuit, counter, oscillator and inverter, radio wave through tuning reception, separate and obtain coded pulse K after be in harmonious proportion amplifying shaping, K one passing point circuit is connected with the input of voltage identificating circuit, obtains serial data M from the output of voltage identificating circuit; Another road is added to the multiple O end of counter CR, and counter is exported through the controlled signal Q of inverter ₃K produces shift pulse K after anti-phase, oscillator produces count pulse V, and one the tunnel for output, and rolling counters forward end E is sent on another road.

5, by the described literal of claim 1, pattern and data message wireless broadcast system, it is characterized in that: calendar, temporal information receiver are by receiving controller IC ₂₀₁, shift register IC _202-204, latch decoder driver IC _207-208, display IC _209-210, gate circuit IC _205-206Form, receive controller three tunnel outputs: (1) output serial data is added to shift register IC ₂₀₂Input DS; (2) the output shift pulse is added to shift register IC _202-204Displacement control end CP, serial data is moved into, and from its output and line output (3) output control pulse Q ₃By or the door IC ₂₀₆Control is latched decoding and is driven along IC _207-208Receive shift register IC _203-204Output signal, driving display IC _209-210Displaying calendar and temporal information.

6, by the described literal of claim 1, pattern and data message wireless broadcast system, it is characterized in that; The picture and text receiving system is made up of picture and text process computer, reception controller, shift register, latch, XOR gate, mask register and gate circuit etc., receives controller output signal; (1) the output serial data is added to the shift register data input; (2) output shift pulse one tunnel is added to SI PO shift register displacement control end, data are moved into register, another road by or door be added to incorporate into and go here and there out shift register displacement control end, make its output control signal, the output signal that control computer working storage received and stored SI PO shift register; (3) when shift register output conforms to mask register output, XOR gate output useful signal is opened or door; Make the control signal that receives controller output by or the gate control built-in storage receive the information of buffer; And pattern signal in the built-in storage is called in the pattern displaying buffering area by latch, the driving display display pattern according to the character code in the built-in storage, send the literal display buffer, the driving display display text by accessing word lattice in the character library.

7, by the described literal of claim 1, pattern and data message wireless broadcast system, it is characterized in that: stock or meteorological condition receiving system are by receiving controller, shift register and latching, decoding, driver and mask register, data display equipment, XOR gate, compositions such as gate circuit, receive controller output serial data and shift pulse and be added to shift register data input and displacement control end respectively, make serial data move into register, and from its output and line output, when shift register part output signal conforms to the selector output signal, XOR gate output useful signal, open or door allows a control signal that receives controller output pass through, control is latched, decoding, driver receives the output signal of shift register, and driving display demonstrates stock or weather information.