GB8727833D0 - Zero if transmitter error corrections - Google Patents
Zero if transmitter error correctionsInfo
- Publication number
- GB8727833D0 GB8727833D0 GB878727833A GB8727833A GB8727833D0 GB 8727833 D0 GB8727833 D0 GB 8727833D0 GB 878727833 A GB878727833 A GB 878727833A GB 8727833 A GB8727833 A GB 8727833A GB 8727833 D0 GB8727833 D0 GB 8727833D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- zero
- error corrections
- transmitter error
- transmitter
- corrections
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/02—Details
- H03C1/06—Modifications of modulator to reduce distortion, e.g. by feedback, and clearly applicable to more than one type of modulator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
- H03C1/60—Modulators in which carrier or one sideband is wholly or partially suppressed with one sideband wholly or partially suppressed
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8727833A GB2213006B (en) | 1987-11-27 | 1987-11-27 | Correction of rf errors in quadrature channels of a zero-if transmitter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8727833A GB2213006B (en) | 1987-11-27 | 1987-11-27 | Correction of rf errors in quadrature channels of a zero-if transmitter |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8727833D0 true GB8727833D0 (en) | 1987-12-31 |
GB2213006A GB2213006A (en) | 1989-08-02 |
GB2213006B GB2213006B (en) | 1992-01-29 |
Family
ID=10627649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8727833A Expired - Lifetime GB2213006B (en) | 1987-11-27 | 1987-11-27 | Correction of rf errors in quadrature channels of a zero-if transmitter |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2213006B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2265269B (en) * | 1992-03-02 | 1995-08-30 | Motorola Ltd | Radio transmitter with linearization training sequence |
US5371481A (en) * | 1993-03-24 | 1994-12-06 | Nokia Mobile Phones Ltd. | Tuning techniques for I/Q channel signals in microwave digital transmission systems |
US5412352A (en) * | 1994-04-18 | 1995-05-02 | Stanford Telecommunications, Inc. | Modulator having direct digital synthesis for broadband RF transmission |
US5574992A (en) * | 1994-04-29 | 1996-11-12 | Motorola, Inc. | Method and apparatus for reducing off-channel interference produced by a linear transmitter |
DE19635330A1 (en) * | 1996-08-30 | 1998-03-12 | Siemens Ag | Method and arrangement for modulator-specific compensation of DC voltage deviations of a modulator |
US6167247A (en) * | 1998-07-15 | 2000-12-26 | Lucent Technologies, Inc. | Local oscillator leak cancellation circuit |
US6745015B2 (en) * | 2001-02-08 | 2004-06-01 | Motorola, Inc. | Method for automatic carrier suppression tuning of a wireless communication device |
US6763227B2 (en) * | 2001-11-07 | 2004-07-13 | Texas Instruments Incorporated | Systems and methods for modulator calibration |
JP4361870B2 (en) | 2002-09-06 | 2009-11-11 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Improved ATSCDTV system parameter coding |
JP4555898B2 (en) | 2003-04-24 | 2010-10-06 | エスティー エリクソン エスエー | Quadrature modulator and calibration method |
WO2005096582A1 (en) * | 2004-03-31 | 2005-10-13 | Koninklijke Philips Electronics N.V. | Receiver for a multi-carrier signal |
US7660563B2 (en) * | 2005-09-26 | 2010-02-09 | Cypress Semiconductor Corporation | Apparatus and method for calibrating mixer offset |
EP2458729A1 (en) | 2010-11-30 | 2012-05-30 | Nxp B.V. | A Gilbert mixer including decoupling means |
-
1987
- 1987-11-27 GB GB8727833A patent/GB2213006B/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB2213006B (en) | 1992-01-29 |
GB2213006A (en) | 1989-08-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 20071126 |