CN1219064A - Character information telephone - Google Patents
Character information telephone Download PDFInfo
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- CN1219064A CN1219064A CN 97119499 CN97119499A CN1219064A CN 1219064 A CN1219064 A CN 1219064A CN 97119499 CN97119499 CN 97119499 CN 97119499 A CN97119499 A CN 97119499A CN 1219064 A CN1219064 A CN 1219064A
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- word message
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Abstract
The present invention belongs to the field of communication and relates to a text information transmitting telephone set. In transmission side, text information codes are transferred into special audio signal (such as double-tone multiple-freq. signal), which is transmitted in specific communication protocol through telephone line and exchange to the receiving side where the audio signal is restored through code transfer into text information. The present invention can carry out fast interactive transmission and is used in information can carry out fast interactive transmission and is used in information consultation, paging, mobile communication and other fields needing text information transmission.
Description
The invention belongs to communication field, relate to a kind of device that when telephone relation, transmits Word message.
Transmitting Word message with telephone line uses facsimile machine transmission graphical information usually or transmits coded message with computer.All want cutoff call under these load modes, otherwise will transmit failure or produce mistake.And the facsimile machine transfer rate is very slow, computer documents transmit operation more loaded down with trivial details, be difficult to reach the purpose of real-time transmission Word message.The literal pager information, the transmission of mobile communication SMS needs the professional to import, not only complexity but also can't ensure personal privacy right.
The objective of the invention is to finish a kind of device that Word message transmits that in communication process, can carry out fast, inconvenient to transmit with language performance or the bigger Word message of amount of information, literal pager information, mobile communication SMS etc.
The method that realizes is that the transcoding, coding transform with the Word message of transmit leg becomes special audio signal (as touch-tone signal), is sent to the recipient with specific communications protocol through telephone line and telephone exchange, through transcoding, coding transform with former literal information reverting.
The information telephone block diagram mainly is made up of audio identification (2) circuit, audio frequency generation (3) circuit, microprocessor (4) circuit, keyboard (5) circuit, display (6) circuit, memory (7) circuit, character library (8) circuit, power supply (9) circuit etc. as shown in Figure 1.Wherein memory (7) circuit comprises required program storage and the information-storing device of microprocessor (4) circuit, and power supply (9) circuit is the each several part power supply of this device.
Encode from keyboard (5) circuit inputting word information during transmission, arrive in memory (7) circuit, and call the character library in character library (8) circuit, go up demonstration at display (6) by microprocessor (4) circuitry stores; After keyboard (5) circuit input transmission instruction, microprocessor (4) circuit is transformed into special audio signal (as touch-tone signal) with the Word message coding by audio frequency generation (3) circuit and sends by telephone line (1) according to certain communications protocol.
Special audio signal (as touch-tone signal) on telephone line during reception (1) becomes the information coding through audio identification (2) circuit, after microprocessor (4) processing of circuit, be stored in memory (7) circuit, and the character library of calling in character library (8) circuit is presented on the display (6).
Information telephone uses special audio signal (as touch-tone signal) to transmit literal code information, highly sensitive, antijamming capability is strong, be suitable for carrier wave, microwave, open-wire line, optical cable, the communication channel that makes preparations for sowing such as wireless, its channel quality there is not specific (special) requirements, as long as can converse, just can transmit information.
The present invention can carry out the interactive mode transmission of Word message fast, is used for the occasion that information consultation, literal paging, mobile communication SMS, phone trust etc. need Word message to transmit.
Fig. 2 is a kind of specific embodiments.Execution mode below in conjunction with Fig. 2 specifically describes the present invention.
Selected special audio signal is 16 touch-tone signals in the present embodiment, with the used touch-tone signal compatibility of communication system, numerical key on the difference telephone set uses with " A ", " B ", " C ", " D " to be the literal identification code as four double audio codes of start bit.Character library is the standard Chinese character library.
High-pass filtering ⑵ circuit can prevent that ringing signal from entering CM8880 (3) circuit; CM8880 (3) circuit both can receive, amplified and decipher touch-tone signal, digital signal conversion can be become touch-tone signal again; LCD display module (7) comprises drive circuit; AT89C51 (5) is the single-chip microcomputer of inner tape program and data storage; EEPROM (4) is an electrically-erasable memory, is used for storing the Word message that sends or receive.
Encode from standard microcomputer keyboard (6) inputting word information during transmission, arrive in EEPROM (4) circuit by microprocessor AT89C51 (5) circuitry stores, and call character library in dot matrix word library and encoding scheme ROM (8) circuit, go up at LCD display module (7) and show; After standard microcomputer keyboard (6) input transmission instruction, microprocessor AT89C51 (5) circuit is according to certain communications protocol, the Word message coding is transformed into touch-tone signal by CM8880 (3) circuit, each Chinese character and character all are to be four double audio codes of start bit with " A ", " B ", " C ", " D ", send by high-pass filtering (2), telephone line (1) again.
Touch-tone signal on telephone line during reception (1), become digital signal through high-pass filtering (2) circuit, CM8880 (3) circuit, after microprocessor AT89C51 (5) processing of circuit, if be four double audio codes of start bit with " A ", " B ", " C ", " D ", then store in EEPROM (4) circuit, and the character library of calling in dot matrix word library and encoding scheme ROM (8) circuit is presented on the LCD display module (7).
Claims (4)
1, information telephone is characterised in that in communication process and can carries out the Word message transmission by special audio signal (as touch-tone signal), exchanges thereby carry out interactive Word message.
2, information telephone is characterised in that the transcoding, coding transform with the Word message of transmit leg becomes special audio signal (as touch-tone signal), is sent to the recipient with specific communications protocol, through transcoding, coding transform with former literal information reverting.
3, information telephone is characterised in that mainly and is made up of audio identification circuit, audio generating circuit, microcontroller circuit, keyboard circuit, display circuit, memory circuitry, character library circuit, power circuit etc.
4, information telephone is characterised in that when the special audio signal of selecting for use is 16 touch-tone signals with the used touch-tone signal compatibility of communication system, uses with " A ", " B ", " C ", " D " to be the literal identification code as four double audio codes of start bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97119499 CN1219064A (en) | 1997-12-05 | 1997-12-05 | Character information telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97119499 CN1219064A (en) | 1997-12-05 | 1997-12-05 | Character information telephone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1219064A true CN1219064A (en) | 1999-06-09 |
Family
ID=5175423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97119499 Pending CN1219064A (en) | 1997-12-05 | 1997-12-05 | Character information telephone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1219064A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356759C (en) * | 2002-07-31 | 2007-12-19 | 光宝科技股份有限公司 | Schedule group calling method by short message transmission |
| CN107018244A (en) * | 2016-01-27 | 2017-08-04 | 宏碁股份有限公司 | The method that interactive word answer service is provided based on dual-tone multifrequency |
-
1997
- 1997-12-05 CN CN 97119499 patent/CN1219064A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356759C (en) * | 2002-07-31 | 2007-12-19 | 光宝科技股份有限公司 | Schedule group calling method by short message transmission |
| CN107018244A (en) * | 2016-01-27 | 2017-08-04 | 宏碁股份有限公司 | The method that interactive word answer service is provided based on dual-tone multifrequency |
| CN107018244B (en) * | 2016-01-27 | 2019-08-09 | 宏碁股份有限公司 | The method of interactive text answer service is provided based on dual-tone multifrequency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |