ES2048043A2 - Method and device for radio transmission of encoded data superimposed on a traditional frequency modulated broadcast - Google Patents
Method and device for radio transmission of encoded data superimposed on a traditional frequency modulated broadcastInfo
- Publication number
- ES2048043A2 ES2048043A2 ES9101890A ES9101890A ES2048043A2 ES 2048043 A2 ES2048043 A2 ES 2048043A2 ES 9101890 A ES9101890 A ES 9101890A ES 9101890 A ES9101890 A ES 9101890A ES 2048043 A2 ES2048043 A2 ES 2048043A2
- Authority
- ES
- Spain
- Prior art keywords
- frequency
- modulated
- signals
- encoded data
- approximately
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Method for the radio transmission of encoded data superimposed on a traditional frequency modulated broadcast, consisting of: modulating the encoded data being transmitted, by frequency displacement, in a predetermined frequency band between approximately 15 and 18 kilohertz to create modulated encoded signals mixing the modulated encoded signals with the low- frequency signals of the traditional program, transmitting the mixed signal with a frequency modulated radio transmitter 20, maintaining the frequency shift of the modulated encoded signals by frequency displacement, expressed in hertz, with respect to the transmission rate of the encoded data being transmitted, expressed in baud, between approximately 85 and 120 percent. The method further comprises the step of attenuating the modulated encoded signals by approximately 20 to 40 decibel relative to the instantaneous transmission level of low-frequency signals of a traditional program, controlling the rate of attenuation of the modulated encoded signals continuously with respect to the instantaneous level of the low-frequency signals of the traditional program.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9101890A ES2048043B1 (en) | 1991-08-14 | 1991-08-14 | PROCESS AND DEVICE FOR RADIO TRANSMISSION OF CODED DATA OVERLAYED ON A TRADITIONAL BROADCAST OF MODULATED FREQUENCY |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9101890A ES2048043B1 (en) | 1991-08-14 | 1991-08-14 | PROCESS AND DEVICE FOR RADIO TRANSMISSION OF CODED DATA OVERLAYED ON A TRADITIONAL BROADCAST OF MODULATED FREQUENCY |
Publications (3)
Publication Number | Publication Date |
---|---|
ES2048043A2 true ES2048043A2 (en) | 1994-03-01 |
ES2048043R ES2048043R (en) | 1995-05-16 |
ES2048043B1 ES2048043B1 (en) | 1995-12-16 |
Family
ID=8273321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9101890A Expired - Lifetime ES2048043B1 (en) | 1991-08-14 | 1991-08-14 | PROCESS AND DEVICE FOR RADIO TRANSMISSION OF CODED DATA OVERLAYED ON A TRADITIONAL BROADCAST OF MODULATED FREQUENCY |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2048043B1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3980954A (en) * | 1975-09-25 | 1976-09-14 | Westinghouse Electric Corporation | Bidirectional communication system for electrical power networks |
US4310854A (en) * | 1979-08-24 | 1982-01-12 | Sanders Associates, Inc. | Television captioning system |
EP0172095A1 (en) * | 1984-07-30 | 1986-02-19 | Dimitri Baranoff-Rossine | Method and arrangement for transmitting coded information by radio channel in superposition on a traditional frequency modulation transmission |
US5128933A (en) * | 1985-07-29 | 1992-07-07 | Baranoff Rossine Dimitri | Process and device for the radio transmission of coded data superimposed on a traditional frequency-modulated broadcast |
-
1991
- 1991-08-14 ES ES9101890A patent/ES2048043B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3980954A (en) * | 1975-09-25 | 1976-09-14 | Westinghouse Electric Corporation | Bidirectional communication system for electrical power networks |
US4310854A (en) * | 1979-08-24 | 1982-01-12 | Sanders Associates, Inc. | Television captioning system |
EP0172095A1 (en) * | 1984-07-30 | 1986-02-19 | Dimitri Baranoff-Rossine | Method and arrangement for transmitting coded information by radio channel in superposition on a traditional frequency modulation transmission |
US5128933A (en) * | 1985-07-29 | 1992-07-07 | Baranoff Rossine Dimitri | Process and device for the radio transmission of coded data superimposed on a traditional frequency-modulated broadcast |
Also Published As
Publication number | Publication date |
---|---|
ES2048043B1 (en) | 1995-12-16 |
ES2048043R (en) | 1995-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA2A | Application withdrawn |
Effective date: 19960711 |