GB2046543B - Fm receivers - Google Patents
Fm receiversInfo
- Publication number
- GB2046543B GB2046543B GB8007728A GB8007728A GB2046543B GB 2046543 B GB2046543 B GB 2046543B GB 8007728 A GB8007728 A GB 8007728A GB 8007728 A GB8007728 A GB 8007728A GB 2046543 B GB2046543 B GB 2046543B
- Authority
- GB
- United Kingdom
- Prior art keywords
- receivers
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Analogue/Digital Conversion (AREA)
- Color Television Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792909921 DE2909921A1 (en) | 1979-03-14 | 1979-03-14 | SOUND CHANNEL SWITCHING FOR FREQUENCY MODULATED SIGNALS |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2046543A GB2046543A (en) | 1980-11-12 |
GB2046543B true GB2046543B (en) | 1983-06-15 |
Family
ID=6065307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8007728A Expired GB2046543B (en) | 1979-03-14 | 1980-03-06 | Fm receivers |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2909921A1 (en) |
FR (1) | FR2451661A1 (en) |
GB (1) | GB2046543B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1737737A1 (en) * | 1986-05-29 | 1992-05-30 | Всесоюзный научно-исследовательский институт радиовещательного приема и акустики им.А.С.Попова | Device for conversion of frequency-modulated analog signal into digital one |
US5732108A (en) * | 1993-03-04 | 1998-03-24 | Nokia Mobile Phones Ltd. | Method and apparatus for producing a difference signal between two signal frequencies, and for detection of modulation |
FI96809C (en) * | 1993-03-04 | 1996-08-26 | Nokia Mobile Phones Ltd | A method and switching arrangement for generating a difference between two signal frequencies and detecting modulation |
EP3819660A1 (en) * | 2019-11-05 | 2021-05-12 | NXP USA, Inc. | Radar transmitter module for digital modulation |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1137132A (en) * | 1965-02-04 | 1968-12-18 | Emi Ltd | Improvements in or relating to frequency modulation receivers |
US3628165A (en) * | 1968-09-19 | 1971-12-14 | Anderson Jacobson Inc | Digital frequency discriminator |
US3548328A (en) * | 1969-01-13 | 1970-12-15 | Honeywell Inc | Digital fm discriminator |
US3842347A (en) * | 1973-07-03 | 1974-10-15 | Gardner Denver Co | Rate measurement circuit |
DE2538185C3 (en) * | 1975-08-27 | 1979-08-30 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Digital pulse rate meter with approximately logarithmic characteristic |
-
1979
- 1979-03-14 DE DE19792909921 patent/DE2909921A1/en not_active Withdrawn
-
1980
- 1980-03-06 GB GB8007728A patent/GB2046543B/en not_active Expired
- 1980-03-14 FR FR8005738A patent/FR2451661A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
GB2046543A (en) | 1980-11-12 |
DE2909921A1 (en) | 1980-09-25 |
FR2451661A1 (en) | 1980-10-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |