MY104459A - Satellite radio receiver - Google Patents

Satellite radio receiver

Info

Publication number
MY104459A
MY104459A MYPI89001520A MYPI19891520A MY104459A MY 104459 A MY104459 A MY 104459A MY PI89001520 A MYPI89001520 A MY PI89001520A MY PI19891520 A MYPI19891520 A MY PI19891520A MY 104459 A MY104459 A MY 104459A
Authority
MY
Malaysia
Prior art keywords
radio receiver
circuit
frequency
satellite radio
range
Prior art date
Application number
MYPI89001520A
Inventor
-Ing Otto Klank Dipl
-Ing Klaus Eilts-Grimm Dipl
-Ing Jurgen Laabs Dipl
Original Assignee
Thomson Brandt Gmbh
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6366294&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MY104459(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of MY104459A publication Critical patent/MY104459A/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
    • 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
    • H03J1/0041—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers
    • H03J1/005—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers in a loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5629—Admission control
    • H04L2012/5631—Resource management and allocation
    • H04L2012/5636—Monitoring or policing, e.g. compliance with allocated rate, corrective actions

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Radio Relay Systems (AREA)

Abstract

A SATELLITE RADIO RECEIVER RECEIVES SIGNALS FROM A SATELLITE RECEIVING FACILITY COMPRISING ONE OR MORE FREQUENCY CONVERTERS. THESE FREQUENCY DRIFT WHICH CAN NO LONGER BE COMPENSATED BY AN AFC CIRCUIT PRESENT IN THE SATELLITE RADIO RECEIVER, WHICH IS ADJUSTING A CARRIER OSCILLATOR FOR CARRIER REGENERATION IN A DEMODULATOR CIRCUIT. UNDER THE INVENTION A LOCAL OSCILLATOR PLANNED FOR A MIXER IS DESIGNED AS A PLL LOCAL OSCILLATOR (44) WHICH IS ADJUSTABLE BY A LARGE AND A SMALL STEP RANGE. THE AFC CIRCUIT (1) AND A SYNC SIGNAL EVALUATION CIRCUIT (40) ARE CONNECTED TO A CONTROL CIRCUIT (34) BY WHICHTHE PLL LOCAL OSCILLATOR (44) IS TUNED IN A LARGE STEP RANGE OUTSIDE THE LOCK-IN RANGE OF THE AFC CIRCUIT (1) WHEN SYNC SIGNALS ARE NOT RECOGNIZED AND, WHEN SYNC SIGNALS ARE RECOGNIZED, IN A SMALL STEP RANGE INTO THE LOCK-IN RANGE OF THE AFC CIRCUIT (1). THE DESCRIBED SATELLITE RADIO RECEIVER IS SUITABLE FOR BEING CONNECTED TO SATELLITE RECEIVING FACILITIES IN WHICH A SUMMED-UP DEVIATION OF THE NOMINAL RECEIVING FREQUENCY OCCURS DUE TO A MULTIPLICITY OF FREQUENCY CONVERTERS, OR TO PRIVATE SINGLE FACILITIES WHICH FOR REASONS OF COST REDUCTION MUST DO WITOUT A HIGH STABILITY OF FREQUENCY.@@(FIG. 1)
MYPI89001520A 1988-11-02 1989-11-01 Satellite radio receiver MY104459A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3837130A DE3837130A1 (en) 1988-11-02 1988-11-02 SATELLITE BROADCAST RECEIVER

Publications (1)

Publication Number Publication Date
MY104459A true MY104459A (en) 1994-03-31

Family

ID=6366294

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI89001520A MY104459A (en) 1988-11-02 1989-11-01 Satellite radio receiver

Country Status (15)

Country Link
EP (2) EP0441851A1 (en)
JP (1) JP3037352B2 (en)
KR (1) KR0158187B1 (en)
CN (1) CN1042460A (en)
AT (1) ATE158905T1 (en)
AU (1) AU4514289A (en)
DD (1) DD286072A5 (en)
DE (2) DE3837130A1 (en)
ES (1) ES2109220T3 (en)
FI (1) FI102436B (en)
HU (2) HU896588D0 (en)
MY (1) MY104459A (en)
TR (1) TR25651A (en)
WO (1) WO1990005410A1 (en)
ZA (1) ZA898312B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003082C1 (en) * 1990-02-02 1991-06-20 Blaupunkt-Werke Gmbh, 3200 Hildesheim, De Sound broadcasting station receiver esp. UHF car radio - controls frequency of mixing oscillator using program memory for subcarriers
JPH05268501A (en) * 1991-12-27 1993-10-15 Gold Star Co Ltd Satellite broadcast receiving system
EP0626775A1 (en) * 1993-05-22 1994-11-30 SELECO S.p.A. Tuning system with a voltage synthesizer and a digital memory
JPH09219693A (en) * 1996-02-09 1997-08-19 Mitsubishi Electric Corp Digital broadcast receiver
DE19815953C1 (en) * 1998-04-09 1999-09-23 Grundig Ag Method of compensating frequency deviations on reception of satellite radio signals using a satellite receiver system
GB2368751B (en) * 2000-09-20 2004-04-21 Nec Technologies Removal of reference frequency offset of a local oscillator in a telecommunications receiver
EP1926306A1 (en) * 2006-11-24 2008-05-28 Thomson Licensing Method and apparatus for automatic fine tuning based on sync detection
CN103188175B (en) * 2011-12-30 2018-05-04 国民技术股份有限公司 A kind of frequency compensated circuit, demodulating system and demodulation method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041535A (en) * 1976-07-22 1977-08-09 Matsushita Electric Corporation Of America Frequency synthesizer tuning system with signal seek control
JPS5657324A (en) * 1979-10-16 1981-05-19 Sanyo Electric Co Ltd Digital electronic tuning system
US4476580A (en) * 1980-06-17 1984-10-09 Sanyo Electric Co., Ltd. Automatic continuous tuning control apparatus for a receiver
US4538175A (en) * 1980-07-11 1985-08-27 Microdyne Corporation Receive only earth satellite ground station
US4367558A (en) * 1980-12-22 1983-01-04 Motorola, Inc. Method for automatically searching for an RF station
US4405947A (en) * 1981-05-08 1983-09-20 Rca Corporation Dual search mode type tuning system
JPS57208465A (en) * 1981-06-18 1982-12-21 Pioneer Electronic Corp Discriminating circuit for frequency
JPS5915335A (en) * 1982-07-15 1984-01-26 Maspro Denkoh Corp Satellite broadcast receiving device
US4498191A (en) * 1983-06-06 1985-02-05 General Electric Company Digital automatic frequency control with tracking

Also Published As

Publication number Publication date
KR900702647A (en) 1990-12-08
EP0367214A1 (en) 1990-05-09
FI102436B1 (en) 1998-11-30
CN1042460A (en) 1990-05-23
FI912111A0 (en) 1991-04-30
WO1990005410A1 (en) 1990-05-17
AU4514289A (en) 1990-05-28
EP0367214B1 (en) 1997-10-01
KR0158187B1 (en) 1999-03-20
DE58909819D1 (en) 1997-11-06
DE3837130A1 (en) 1990-05-03
ZA898312B (en) 1990-07-25
DD286072A5 (en) 1991-01-10
ES2109220T3 (en) 1998-01-16
JPH04501640A (en) 1992-03-19
HU208201B (en) 1993-08-30
FI102436B (en) 1998-11-30
JP3037352B2 (en) 2000-04-24
TR25651A (en) 1993-05-12
EP0441851A1 (en) 1991-08-21
HU896588D0 (en) 1991-07-29
ATE158905T1 (en) 1997-10-15

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