WO2007018888A3 - Television receiver suitable for multi-standard operation and method therefor - Google Patents
Television receiver suitable for multi-standard operation and method therefor Download PDFInfo
- Publication number
- WO2007018888A3 WO2007018888A3 PCT/US2006/026700 US2006026700W WO2007018888A3 WO 2007018888 A3 WO2007018888 A3 WO 2007018888A3 US 2006026700 W US2006026700 W US 2006026700W WO 2007018888 A3 WO2007018888 A3 WO 2007018888A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- output terminal
- providing
- television receiver
- method therefor
- Prior art date
Links
- 238000001228 spectrum Methods 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
- H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
- H04B1/28—Circuits for superheterodyne receivers the receiver comprising at least one semiconductor device having three or more electrodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
- H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
- H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
- H04N21/4263—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
-
- 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
- H04N5/4446—IF amplifier circuits specially adapted for B&W TV
-
- 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
- H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2215/00—Reducing interference at the transmission system level
- H04B2215/064—Reduction of clock or synthesizer reference frequency harmonics
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2215/00—Reducing interference at the transmission system level
- H04B2215/064—Reduction of clock or synthesizer reference frequency harmonics
- H04B2215/065—Reduction of clock or synthesizer reference frequency harmonics by changing the frequency of clock or reference frequency
Abstract
A receiver (1100) includes a direct digital frequency synthesizer (130), a mixer (105), and a clock source (1110, 1130). The direct digital frequency synthesizer has an input terminal for receiving a first clock signal at a first frequency, and an output terminal for providing a digital local oscillator signal synchronously with the first clock signal. The mixer (105) has a first input terminal for receiving a radio frequency (RF) signal, a second input terminal coupled to the output terminal of the direct digital frequency synthesizer (130), and an output terminal for providing an IF signal having a spectrum centered about a selectable one of a plurality of center frequencies. The clock source (1110, 1130) has an output terminal for providing the first clock signal without using any harmonic frequency that overlaps the spectrum for any of the plurality of center frequencies.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/194,034 | 2005-07-29 | ||
US11/194,034 US7675996B2 (en) | 2003-02-28 | 2005-07-29 | Television receiver suitable for multi-standard operation and method therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007018888A2 WO2007018888A2 (en) | 2007-02-15 |
WO2007018888A3 true WO2007018888A3 (en) | 2008-02-14 |
Family
ID=37727803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2006/026700 WO2007018888A2 (en) | 2005-07-29 | 2006-07-11 | Television receiver suitable for multi-standard operation and method therefor |
Country Status (2)
Country | Link |
---|---|
US (1) | US7675996B2 (en) |
WO (1) | WO2007018888A2 (en) |
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US7358885B2 (en) * | 2003-02-28 | 2008-04-15 | Silicon Laboratories, Inc. | Mixing DAC architectures for a radio frequency receiver |
US7853233B2 (en) * | 2004-09-16 | 2010-12-14 | Qualcomm Incorporated | Zero if down converter with even order harmonic suppression |
US7450051B1 (en) * | 2005-11-18 | 2008-11-11 | Valentine Research, Inc. | Systems and methods for discriminating signals in a multi-band detector |
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TW200805955A (en) * | 2006-07-07 | 2008-01-16 | Hon Hai Prec Ind Co Ltd | Modem and method for switching work mode thereof |
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US20080132189A1 (en) * | 2006-11-30 | 2008-06-05 | Silicon Laboratories, Inc. | Mixing dac and polyphase filter architectures for a radio frequency receiver |
US7599676B2 (en) * | 2007-01-31 | 2009-10-06 | Silicon Laboratories, Inc. | Power consumption reduction techniques for an RF receiver implementing a mixing DAC architecture |
US8068794B2 (en) * | 2007-02-28 | 2011-11-29 | Broadcom Corporation | Method and system for a multisystem polar transmitter |
US7978782B2 (en) * | 2007-02-28 | 2011-07-12 | Broadcom Corporation | Method and system for polar modulation using a direct digital frequency synthesizer |
US8036308B2 (en) * | 2007-02-28 | 2011-10-11 | Broadcom Corporation | Method and system for a wideband polar transmitter |
US20080212658A1 (en) * | 2007-03-01 | 2008-09-04 | Ahmadreza Rofougaran | Method and system for communication of signals using a direct digital frequency synthesizer (ddfs) |
US8014422B2 (en) * | 2007-09-28 | 2011-09-06 | Broadcom Corporation | Method and system for utilizing a single PLL to clock an array of DDFS for multi-protocol applications |
US8655296B2 (en) * | 2007-12-18 | 2014-02-18 | Harris Corporation | Frequency synthesizer and related method for generating wideband signals |
US8081929B2 (en) * | 2008-06-05 | 2011-12-20 | Broadcom Corporation | Method and system for optimal frequency planning for an integrated communication system with multiple receivers |
US8063669B2 (en) * | 2008-11-06 | 2011-11-22 | Nokia Corporation | Frequency synthesizer having a plurality of independent output tones |
US20100323635A1 (en) * | 2009-06-23 | 2010-12-23 | Terry Steeper | Apparatus and methods for minimizing phase interaction between multiple tuner solutions |
US8576343B2 (en) * | 2009-06-29 | 2013-11-05 | Silicon Laboratories Inc. | Digital signal processor (DSP) architecture for a hybrid television tuner |
WO2011008208A1 (en) * | 2009-07-15 | 2011-01-20 | Hewlett-Packard Development Company, L.P. | Mixer to transmit audiovisual data |
US7948274B2 (en) * | 2009-09-30 | 2011-05-24 | Nokia Corporation | Frequency generation circuitry and method |
US8224279B2 (en) | 2009-12-18 | 2012-07-17 | Silicon Laboratories, Inc. | Radio frequency (RF) receiver with dynamic frequency planning and method therefor |
US8874060B2 (en) * | 2009-12-18 | 2014-10-28 | Silicon Laboratories Inc. | Radio frequency (RF) receiver with frequency planning and method therefor |
US8699985B1 (en) * | 2010-04-29 | 2014-04-15 | Agilent Technologies, Inc. | Frequency generator including direct digital synthesizer and signal processor including the same |
US8346202B2 (en) * | 2010-06-28 | 2013-01-01 | Silicon Laboratories Inc. | Digital intensive baseband chain of a receiver |
JP2012075068A (en) * | 2010-09-30 | 2012-04-12 | On Semiconductor Trading Ltd | Tuner |
TWI429285B (en) * | 2010-11-02 | 2014-03-01 | Mstar Semiconductor Inc | Analog television receiver |
US10175271B2 (en) * | 2012-12-31 | 2019-01-08 | Silicon Laboratories Inc. | Apparatus for differencing comparator and associated methods |
US8928820B2 (en) | 2013-03-13 | 2015-01-06 | Silcon Laboratories Inc. | Television tuner to capture a cable spectrum |
US8885106B2 (en) * | 2013-03-13 | 2014-11-11 | Silicon Laboratories Inc. | Multi-tuner using interpolative dividers |
CN203399199U (en) * | 2013-07-29 | 2014-01-15 | 宏观微电子股份有限公司 | Universal tuner and digital television receiver system |
JP6511800B2 (en) * | 2014-12-24 | 2019-05-15 | アイコム株式会社 | Local oscillator circuit and heterodyne receiver using the same |
EP3057239B1 (en) * | 2015-02-16 | 2024-04-03 | IMEC vzw | A front-end system for a radio device |
JP6454596B2 (en) * | 2015-05-13 | 2019-01-16 | 株式会社日立製作所 | transceiver |
US9473158B1 (en) * | 2015-09-30 | 2016-10-18 | Lockheed Martin Corporation | Radio frequency receiver with overlapped analog to digital converter (ADC) architecture |
US10523261B2 (en) * | 2016-03-31 | 2019-12-31 | Apple Inc. | Co-channel wireless detection |
WO2018083387A1 (en) | 2016-11-03 | 2018-05-11 | Stmicroelectronics Sa | System for parallel radio reception with digitally controlled analog mixer amplifiers |
US10862504B2 (en) * | 2018-08-29 | 2020-12-08 | Mediatek Singapore Pte. Ltd. | Radio frequency bandpass delta-sigma analog-to-digital converters and related methods |
US10855306B2 (en) | 2018-08-30 | 2020-12-01 | Mediatek Singapore Pte. Ltd. | High-speed digital-to-analog converter |
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US20030100280A1 (en) * | 2001-11-29 | 2003-05-29 | Patrick Kusbel | System and method for reducing the effects of clock harmonic frequencies |
US20050117071A1 (en) * | 2003-02-28 | 2005-06-02 | Silicon Laboratories, Inc. | Tuner using a direct digital frequency synthesizer, television receiver using such a tuner, and method therefor |
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2005
- 2005-07-29 US US11/194,034 patent/US7675996B2/en active Active
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2006
- 2006-07-11 WO PCT/US2006/026700 patent/WO2007018888A2/en active Application Filing
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US4870699A (en) * | 1986-03-26 | 1989-09-26 | General Electric Company | Method and apparatus for controlling the frequency of operation and at least one further variable operating parameter of a radio communications device |
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Also Published As
Publication number | Publication date |
---|---|
US20050266818A1 (en) | 2005-12-01 |
WO2007018888A2 (en) | 2007-02-15 |
US7675996B2 (en) | 2010-03-09 |
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