DE3788086D1 - Signaltrennung l+r von l-r im BTSC-System. - Google Patents
Signaltrennung l+r von l-r im BTSC-System.Info
- Publication number
- DE3788086D1 DE3788086D1 DE87109625T DE3788086T DE3788086D1 DE 3788086 D1 DE3788086 D1 DE 3788086D1 DE 87109625 T DE87109625 T DE 87109625T DE 3788086 T DE3788086 T DE 3788086T DE 3788086 D1 DE3788086 D1 DE 3788086D1
- Authority
- DE
- Germany
- Prior art keywords
- signal separation
- btsc system
- btsc
- separation
- signal
- 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
- 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
- H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Stereo-Broadcasting Methods (AREA)
- Stereophonic System (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/882,753 US4757538A (en) | 1986-07-07 | 1986-07-07 | Separation of L+R from L-R in BTSC system |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3788086D1 true DE3788086D1 (de) | 1993-12-16 |
DE3788086T2 DE3788086T2 (de) | 1994-05-19 |
Family
ID=25381266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3788086T Expired - Fee Related DE3788086T2 (de) | 1986-07-07 | 1987-07-03 | Signaltrennung l+r von l-r im BTSC-System. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4757538A (de) |
EP (1) | EP0252452B1 (de) |
JP (1) | JPH0681109B2 (de) |
CA (1) | CA1289080C (de) |
DE (1) | DE3788086T2 (de) |
DK (1) | DK345787A (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4893341A (en) * | 1989-08-01 | 1990-01-09 | At&E Corporation | Digital receiver operating at sub-nyquist sampling rate |
US5051152A (en) * | 1989-09-26 | 1991-09-24 | Air Products And Chemicals, Inc. | Preparation of urethane prepolymers having low levels of residual toluene diisocyanate |
US5054070A (en) * | 1990-03-05 | 1991-10-01 | Qei Corporation | Stereo signal communication system and method |
US5239585A (en) * | 1991-07-30 | 1993-08-24 | Texas Instruments Incorporated | Devices, systems, and methods for composite signal decoding |
US6061551A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for down-converting electromagnetic signals |
US6091940A (en) | 1998-10-21 | 2000-07-18 | Parkervision, Inc. | Method and system for frequency up-conversion |
US6694128B1 (en) | 1998-08-18 | 2004-02-17 | Parkervision, Inc. | Frequency synthesizer using universal frequency translation technology |
US7515896B1 (en) * | 1998-10-21 | 2009-04-07 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships |
US6813485B2 (en) | 1998-10-21 | 2004-11-02 | Parkervision, Inc. | Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same |
US6061555A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for ensuring reception of a communications signal |
US6542722B1 (en) | 1998-10-21 | 2003-04-01 | Parkervision, Inc. | Method and system for frequency up-conversion with variety of transmitter configurations |
US6560301B1 (en) | 1998-10-21 | 2003-05-06 | Parkervision, Inc. | Integrated frequency translation and selectivity with a variety of filter embodiments |
US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
US6049706A (en) | 1998-10-21 | 2000-04-11 | Parkervision, Inc. | Integrated frequency translation and selectivity |
US7039372B1 (en) | 1998-10-21 | 2006-05-02 | Parkervision, Inc. | Method and system for frequency up-conversion with modulation embodiments |
US6757659B1 (en) * | 1998-11-16 | 2004-06-29 | Victor Company Of Japan, Ltd. | Audio signal processing apparatus |
US6704558B1 (en) | 1999-01-22 | 2004-03-09 | Parkervision, Inc. | Image-reject down-converter and embodiments thereof, such as the family radio service |
US6704549B1 (en) | 1999-03-03 | 2004-03-09 | Parkvision, Inc. | Multi-mode, multi-band communication system |
US6879817B1 (en) | 1999-04-16 | 2005-04-12 | Parkervision, Inc. | DC offset, re-radiation, and I/Q solutions using universal frequency translation technology |
US6853690B1 (en) | 1999-04-16 | 2005-02-08 | Parkervision, Inc. | Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments |
US7065162B1 (en) | 1999-04-16 | 2006-06-20 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same |
US7110444B1 (en) | 1999-08-04 | 2006-09-19 | Parkervision, Inc. | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations |
US7693230B2 (en) | 1999-04-16 | 2010-04-06 | Parkervision, Inc. | Apparatus and method of differential IQ frequency up-conversion |
US8295406B1 (en) | 1999-08-04 | 2012-10-23 | Parkervision, Inc. | Universal platform module for a plurality of communication protocols |
US7010286B2 (en) | 2000-04-14 | 2006-03-07 | Parkervision, Inc. | Apparatus, system, and method for down-converting and up-converting electromagnetic signals |
GB2369512A (en) * | 2000-10-07 | 2002-05-29 | Motorola Inc | Signal separation of spectrally close frequencies |
US7454453B2 (en) | 2000-11-14 | 2008-11-18 | Parkervision, Inc. | Methods, systems, and computer program products for parallel correlation and applications thereof |
US7072427B2 (en) | 2001-11-09 | 2006-07-04 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
US7379883B2 (en) | 2002-07-18 | 2008-05-27 | Parkervision, Inc. | Networking methods and systems |
US7460584B2 (en) | 2002-07-18 | 2008-12-02 | Parkervision, Inc. | Networking methods and systems |
AU2003295716A1 (en) * | 2002-11-19 | 2004-06-15 | Cable Electronics, Inc. | Digitally decoding an mts signal |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4282401A (en) * | 1970-12-24 | 1981-08-04 | Sansui Electric Company | System for transmission and reception of discrete four channel stereo |
US4497063A (en) * | 1981-06-26 | 1985-01-29 | Pioneer Electronic Corporation | FM stereo demodulator |
US4502148A (en) * | 1981-06-26 | 1985-02-26 | Pioneer Electronic Corporation | FM Stereo demodulator for demodulating stereo signals directly from an FM intermediate frequency signal |
JPS5943644A (ja) * | 1982-09-04 | 1984-03-10 | Pioneer Electronic Corp | Fmステレオ復調回路 |
JPS60128732A (ja) * | 1983-12-16 | 1985-07-09 | Nec Corp | ステレオ複号信号復調器 |
JPS62219830A (ja) * | 1986-03-20 | 1987-09-28 | Sony Corp | Fmステレオ復調回路 |
-
1986
- 1986-07-07 US US06/882,753 patent/US4757538A/en not_active Expired - Lifetime
-
1987
- 1987-05-29 CA CA000538392A patent/CA1289080C/en not_active Expired - Fee Related
- 1987-06-22 JP JP62155245A patent/JPH0681109B2/ja not_active Expired - Lifetime
- 1987-07-03 EP EP87109625A patent/EP0252452B1/de not_active Expired - Lifetime
- 1987-07-03 DE DE3788086T patent/DE3788086T2/de not_active Expired - Fee Related
- 1987-07-06 DK DK345787A patent/DK345787A/da not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE3788086T2 (de) | 1994-05-19 |
JPH0681109B2 (ja) | 1994-10-12 |
JPS6315600A (ja) | 1988-01-22 |
EP0252452A3 (en) | 1990-11-07 |
CA1289080C (en) | 1991-09-17 |
EP0252452B1 (de) | 1993-11-10 |
DK345787A (da) | 1988-01-08 |
EP0252452A2 (de) | 1988-01-13 |
DK345787D0 (da) | 1987-07-06 |
US4757538A (en) | 1988-07-12 |
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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 |