DE69423943T2 - Erkennung eines Funkrufsignals in einer frequenzmodulierten Runkfunkübertragung - Google Patents
Erkennung eines Funkrufsignals in einer frequenzmodulierten RunkfunkübertragungInfo
- Publication number
- DE69423943T2 DE69423943T2 DE69423943T DE69423943T DE69423943T2 DE 69423943 T2 DE69423943 T2 DE 69423943T2 DE 69423943 T DE69423943 T DE 69423943T DE 69423943 T DE69423943 T DE 69423943T DE 69423943 T2 DE69423943 T2 DE 69423943T2
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- detection
- radio transmission
- paging signal
- modulated radio
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
- H04H20/33—Arrangements for simultaneous broadcast of plural pieces of information by plural channels
- H04H20/34—Arrangements for simultaneous broadcast of plural pieces of information by plural channels using an out-of-band subcarrier signal
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
- G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
- G08B3/1016—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
- G08B3/1025—Paging receivers with audible signalling details
- G08B3/1066—Paging receivers with audible signalling details with other provisions not elsewhere provided for, e.g. turn-off protection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
- H04H2201/13—Aspects of broadcast communication characterised by the type of broadcast system radio data system/radio broadcast data system [RDS/RBDS]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9323461A GB2283844B (en) | 1993-11-13 | 1993-11-13 | Detection of pager signal in FM radio transmission |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69423943D1 DE69423943D1 (de) | 2000-05-18 |
DE69423943T2 true DE69423943T2 (de) | 2000-11-16 |
Family
ID=10745142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69423943T Expired - Fee Related DE69423943T2 (de) | 1993-11-13 | 1994-11-04 | Erkennung eines Funkrufsignals in einer frequenzmodulierten Runkfunkübertragung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5568655A (de) |
EP (1) | EP0653857B1 (de) |
DE (1) | DE69423943T2 (de) |
GB (1) | GB2283844B (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08256069A (ja) * | 1995-03-16 | 1996-10-01 | Sanyo Electric Co Ltd | Fm多重放送受信回路及びそれを用いた受信機 |
US5881365A (en) * | 1996-01-18 | 1999-03-09 | Clariti Telecommunications International, Ltd. | Digital compressed voice paging system which uses R.D.S. format for the ID signals and S.C.A. format for the voice signals both formats being FM subcarriers |
DE59611437D1 (de) * | 1996-02-27 | 2007-08-23 | Micronas Gmbh | Schaltung zur Dekodierung einer Zusatzinformation in einer Rundfunkübertragung |
AU7346800A (en) | 1999-09-02 | 2001-03-26 | Automated Business Companies | Communication and proximity authorization systems |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4142177A (en) * | 1976-08-12 | 1979-02-27 | Motorola, Inc. | Digital tone decoder system |
GB2032737A (en) * | 1978-10-24 | 1980-05-08 | Standard Telephones Cables Ltd | Radio receiver for tone modulated signals |
AU6597381A (en) * | 1980-01-07 | 1981-07-16 | Mastiff Security Systems Ltd. | R.f. receiver |
DE3121034C2 (de) * | 1981-05-27 | 1987-01-02 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | UKW-Empfänger |
DE3143468A1 (de) * | 1981-11-03 | 1983-05-11 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | Ukw-empfaenger |
GB2146204A (en) * | 1983-09-06 | 1985-04-11 | Mcmartin Ind Inc | FM subsidiary transmission method and system |
WO1985003824A1 (en) * | 1984-02-16 | 1985-08-29 | Ma John Yoh Han | Fm subcarrier transmission system |
US4783845A (en) * | 1985-12-20 | 1988-11-08 | Itt Aerospace Optical | Digital tone squelch detector |
GB8721853D0 (en) * | 1987-09-17 | 1987-10-21 | Leather T H | Radio telephone receiver |
JP2647671B2 (ja) * | 1988-02-05 | 1997-08-27 | パイオニア株式会社 | 受信機 |
US5170487A (en) * | 1989-01-19 | 1992-12-08 | Seiko Corp. | Paging system with multiple frequencies and multiple protocols |
US5146612A (en) * | 1989-04-17 | 1992-09-08 | Spingarn James L | Technique for using a subcarrier frequency of a radio station to transmit, receive and display a message together with audio reproduction of the radio program |
JP2850569B2 (ja) * | 1990-06-01 | 1999-01-27 | セイコーエプソン株式会社 | 選択呼出受信機 |
DE4018951A1 (de) * | 1990-06-13 | 1991-12-19 | Bosch Gmbh Robert | Verfahren zur selektiven rufuebertragung und rufempfaenger zur durchfuehrung des verfahrens |
US5428610A (en) * | 1992-11-10 | 1995-06-27 | World Communication Ventures, Inc. | FM radio system employing time shared wide SCA for digital data band |
-
1993
- 1993-11-13 GB GB9323461A patent/GB2283844B/en not_active Expired - Fee Related
-
1994
- 1994-11-04 DE DE69423943T patent/DE69423943T2/de not_active Expired - Fee Related
- 1994-11-04 EP EP94308128A patent/EP0653857B1/de not_active Expired - Lifetime
- 1994-11-14 US US08/338,034 patent/US5568655A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5568655A (en) | 1996-10-22 |
EP0653857B1 (de) | 2000-04-12 |
DE69423943D1 (de) | 2000-05-18 |
GB2283844B (en) | 1997-06-11 |
GB2283844A (en) | 1995-05-17 |
GB9323461D0 (en) | 1994-01-05 |
EP0653857A1 (de) | 1995-05-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |