GB1562918A - Tuners for receiving broadcast signals - Google Patents

Tuners for receiving broadcast signals Download PDF

Info

Publication number
GB1562918A
GB1562918A GB46401/76A GB4640176A GB1562918A GB 1562918 A GB1562918 A GB 1562918A GB 46401/76 A GB46401/76 A GB 46401/76A GB 4640176 A GB4640176 A GB 4640176A GB 1562918 A GB1562918 A GB 1562918A
Authority
GB
United Kingdom
Prior art keywords
channel
signal
frequency
band
filter
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
Application number
GB46401/76A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of GB1562918A publication Critical patent/GB1562918A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
    • 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
    • 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
    • H03D7/18—Modifications of frequency-changers for eliminating image frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Superheterodyne Receivers (AREA)
GB46401/76A 1975-11-13 1976-11-08 Tuners for receiving broadcast signals Expired GB1562918A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP50136622A JPS5826699B2 (ja) 1975-11-13 1975-11-13 チユ−ナ
US73927576A 1976-11-05 1976-11-05

Publications (1)

Publication Number Publication Date
GB1562918A true GB1562918A (en) 1980-03-19

Family

ID=26470145

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46401/76A Expired GB1562918A (en) 1975-11-13 1976-11-08 Tuners for receiving broadcast signals

Country Status (8)

Country Link
US (1) US4115737A (enExample)
JP (1) JPS5826699B2 (enExample)
AU (1) AU502221B2 (enExample)
CA (1) CA1092733A (enExample)
DE (1) DE2651796A1 (enExample)
FR (1) FR2331915A1 (enExample)
GB (1) GB1562918A (enExample)
NL (1) NL7612560A (enExample)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4234965A (en) * 1978-06-28 1980-11-18 Motorola, Inc. Communication tuning system utilizing local oscillator frequency selection for maximum RF filter bandwidth and method thereof
JPS55158639U (enExample) * 1979-05-02 1980-11-14
US4271529A (en) * 1980-03-20 1981-06-02 Zenith Radio Corporation Tunable resonant circuits for a multi-band VHF/UHF/CATV tuner
JPS6139733A (ja) * 1984-07-31 1986-02-25 Seiko Epson Corp Ｖｈｆチユ−ナ
FI109736B (fi) * 1993-11-01 2002-09-30 Nokia Corp Vastaanottimen taajuusalueen ja kaistanleveyden vaihto peilitaajuutta vaimentavan sekoittimen avulla
GB9509145D0 (en) * 1995-04-28 1995-06-28 Thomson Consumer Electronics Two band 25 channel cordless telephone system
US5575001A (en) * 1995-06-07 1996-11-12 Hwa Lin Electronic Co., Ltd. Direct broadcasting satellite tuner with a negative feedback and image compression circuit
JPH09200070A (ja) * 1996-01-12 1997-07-31 Matsushita Electric Ind Co Ltd 受信回路
FR2745131A1 (fr) * 1996-02-21 1997-08-22 Philips Electronics Nv Appareil de radio-telephonie multimode
JPH09294261A (ja) * 1996-04-26 1997-11-11 Sharp Corp 衛星放送受信機用ｄｂｓチューナー
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
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US7027786B1 (en) 1998-10-21 2006-04-11 Parkervision, Inc. Carrier and clock recovery using universal frequency translation
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
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
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
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
US7006805B1 (en) * 1999-01-22 2006-02-28 Parker Vision, Inc. Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service
US6873836B1 (en) 1999-03-03 2005-03-29 Parkervision, Inc. Universal platform module and methods and apparatuses relating thereto enabled by 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
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US7110435B1 (en) 1999-03-15 2006-09-19 Parkervision, Inc. Spread spectrum applications of universal frequency translation
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
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7072390B1 (en) 1999-08-04 2006-07-04 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
US7054296B1 (en) 1999-08-04 2006-05-30 Parkervision, Inc. Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7082171B1 (en) 1999-11-24 2006-07-25 Parkervision, Inc. Phase shifting applications of universal frequency translation
US6963734B2 (en) 1999-12-22 2005-11-08 Parkervision, Inc. Differential frequency down-conversion using techniques of universal frequency translation technology
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
DE60037722T2 (de) * 2000-05-17 2009-01-15 Sony Deutschland Gmbh AM Empfänger
US7554508B2 (en) 2000-06-09 2009-06-30 Parker Vision, Inc. Phased array antenna applications on universal frequency translation
US7010559B2 (en) 2000-11-14 2006-03-07 Parkervision, Inc. Method and apparatus for a parallel correlator and applications thereof
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
GB2372174B (en) * 2001-02-12 2003-07-16 Matsushita Electric Industrial Co Ltd Intermediate frequency planning in radio transmitters and receivers
CN1255947C (zh) * 2001-04-27 2006-05-10 皇家菲利浦电子有限公司 超高频通带中的开关
US7085335B2 (en) 2001-11-09 2006-08-01 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7333791B2 (en) * 2001-12-11 2008-02-19 Microtune (Texas), L.P. Use of an image reject mixer in a forward data channel tuner
JP4166466B2 (ja) * 2001-12-19 2008-10-15 ソニー株式会社 無線通信システム及び無線通信方法、無線通信装置及びその制御方法、並びにコンピュータ・プログラム
US20050143031A1 (en) * 2002-02-06 2005-06-30 Oswald Moonen Multi-band receiver
US6643503B1 (en) * 2002-04-17 2003-11-04 Motorola, Inc. Wireless speaker for radio communication device
US6975848B2 (en) 2002-06-04 2005-12-13 Parkervision, Inc. Method and apparatus for DC offset removal in a radio frequency communication channel
US7321640B2 (en) 2002-06-07 2008-01-22 Parkervision, Inc. Active polyphase inverter filter for quadrature signal generation
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
EP3672177A1 (en) 2018-12-20 2020-06-24 GN Hearing A/S Hearing device having dual band radio using image frequency

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639840A (en) * 1969-11-28 1972-02-01 Spencer Kennedy Lab Inc Multicarrier transmission system
US3931578A (en) * 1973-12-26 1976-01-06 General Electric Company Multiple frequency band receiver tuner system using single, non-bandswitched local oscillator
JPS50135912A (enExample) * 1974-03-30 1975-10-28
US3942120A (en) * 1974-07-22 1976-03-02 Texas Instruments Incorporated SWD FM receiver circuit
US4045740A (en) * 1975-10-28 1977-08-30 The United States Of America As Represented By The Secretary Of The Army Method for optimizing the bandwidth of a radio receiver

Also Published As

Publication number Publication date
AU502221B2 (en) 1979-07-19
JPS5260514A (en) 1977-05-19
DE2651796A1 (de) 1977-05-26
US4115737A (en) 1978-09-19
NL7612560A (nl) 1977-05-17
CA1092733A (en) 1980-12-30
JPS5826699B2 (ja) 1983-06-04
FR2331915A1 (fr) 1977-06-10
AU1938676A (en) 1978-05-18
FR2331915B1 (enExample) 1982-08-13

Similar Documents

Publication Publication Date Title
GB1562918A (en) Tuners for receiving broadcast signals
GB1560387A (en) Tuners for receiving broadcast signals
US4710972A (en) SHF receiver
EP0346495B1 (en) Television tuner
US4496979A (en) FM High-fidelity processor
US3617641A (en) Stereo multiplex demodulator
US4388496A (en) FM/AM Stereo receiver
US2670404A (en) Multichannel radioelectric communication system
GB2102229A (en) Television sound receivers
GB1507104A (en) Community aerial television systems
US4674121A (en) Circuit for detecting the level of noise in FM signal for use in AM/FM receiver
EP0668656B1 (en) A tuner for a satellite broadcasting receiver
US4315333A (en) Circuit arrangement for a wide-band VHF-UHF television double superheterodyne receiver
US4584716A (en) Automatic dual diversity receiver
GB464286A (en) Improvements in or relating to modulated carrier wave receivers
US3324396A (en) Multiple conversion transceiver utilizing single oscillator
US2650265A (en) Dual purpose carrier wave receiver
US2686221A (en) Simplified compbination fm and television receiver
US4225823A (en) Front end circuits of FM receivers
US3560653A (en) Stereo receiver suitable for integrated circuit construction
US2609441A (en) Combination radio television receiving system
GB2238213A (en) Multiplex stereophonic demodulator for A2 and NICAM
US3161727A (en) Sterophonic-to-monophonic reception apparatus
US3248484A (en) Fm multiplex stereo receiver having selective bias to condition receiver for stereophonic reception only
US1915483A (en) Radioreceiver

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941108