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
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 |
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 |
US6091940A (en) | 1998-10-21 | 2000-07-18 | Parkervision, Inc. | Method and system for frequency up-conversion |
US6061551A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for down-converting electromagnetic signals |
US7039372B1 (en) | 1998-10-21 | 2006-05-02 | Parkervision, Inc. | Method and system for frequency up-conversion with modulation embodiments |
US6542722B1 (en) | 1998-10-21 | 2003-04-01 | Parkervision, Inc. | Method and system for frequency up-conversion with variety of transmitter configurations |
US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
US6049706A (en) | 1998-10-21 | 2000-04-11 | Parkervision, Inc. | Integrated frequency translation and selectivity |
US6061555A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for ensuring reception of a communications signal |
US6560301B1 (en) | 1998-10-21 | 2003-05-06 | Parkervision, Inc. | Integrated frequency translation and selectivity with a variety of filter embodiments |
US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
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 |
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 |
US7693230B2 (en) | 1999-04-16 | 2010-04-06 | Parkervision, Inc. | Apparatus and method of differential IQ frequency up-conversion |
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 |
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 |
JP2006508571A (ja) * | 2002-11-19 | 2006-03-09 | ケーブル エレクトロニクス インコーポレーテッド | Mts信号のデジタル復号化方法およびシステム |
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 |
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 |
US4497063A (en) * | 1981-06-26 | 1985-01-29 | Pioneer Electronic Corporation | FM stereo demodulator |
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 DE DE3788086T patent/DE3788086T2/de not_active Expired - Fee Related
- 1987-07-03 EP EP87109625A patent/EP0252452B1/de not_active Expired - Lifetime
- 1987-07-06 DK DK345787A patent/DK345787A/da not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE3788086T2 (de) | 1994-05-19 |
US4757538A (en) | 1988-07-12 |
EP0252452A3 (en) | 1990-11-07 |
EP0252452B1 (de) | 1993-11-10 |
DK345787A (da) | 1988-01-08 |
CA1289080C (en) | 1991-09-17 |
EP0252452A2 (de) | 1988-01-13 |
JPH0681109B2 (ja) | 1994-10-12 |
DK345787D0 (da) | 1987-07-06 |
JPS6315600A (ja) | 1988-01-22 |
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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 |