NL178554C - DIGITAL RECEIVER. - Google Patents

DIGITAL RECEIVER.

Info

Publication number
NL178554C
NL178554C NL7400316A NL7400316A NL178554C NL 178554 C NL178554 C NL 178554C NL 7400316 A NL7400316 A NL 7400316A NL 7400316 A NL7400316 A NL 7400316A NL 178554 C NL178554 C NL 178554C
Authority
NL
Netherlands
Prior art keywords
digital receiver
receiver
digital
Prior art date
Application number
NL7400316A
Other languages
Dutch (nl)
Other versions
NL7400316A (en
NL178554B (en
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 NL7400316A publication Critical patent/NL7400316A/xx
Publication of NL178554B publication Critical patent/NL178554B/en
Application granted granted Critical
Publication of NL178554C publication Critical patent/NL178554C/en

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00Discontinuous 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
    • H03J5/02Discontinuous 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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0272Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
    • H03J5/0281Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers
    • H03G3/20Automatic control
    • H03G3/30Automatic control in amplifiers having semiconductor devices
    • H03G3/34Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/348Muting in response to a mechanical action or to power supply variations, e.g. during tuning; Click removal circuits
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18Automatic scanning over a band of frequencies
    • H03J7/20Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/28Automatic 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
    • H03J7/285Automatic 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 the counter or frequency divider being used in a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Noise Elimination (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
NL7400316A 1973-01-09 1974-01-09 DIGITAL RECEIVER. NL178554C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP543173A JPS5627024B2 (en) 1973-01-09 1973-01-09

Publications (3)

Publication Number Publication Date
NL7400316A NL7400316A (en) 1974-07-11
NL178554B NL178554B (en) 1985-11-01
NL178554C true NL178554C (en) 1986-04-01

Family

ID=11610987

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7400316A NL178554C (en) 1973-01-09 1974-01-09 DIGITAL RECEIVER.

Country Status (7)

Country Link
JP (1) JPS5627024B2 (en)
CA (1) CA1044765A (en)
DE (1) DE2400943C2 (en)
FR (1) FR2332659A1 (en)
GB (1) GB1445031A (en)
IT (1) IT1017534B (en)
NL (1) NL178554C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2517389C2 (en) * 1975-04-19 1982-09-23 Blaupunkt-Werke Gmbh, 3200 Hildesheim Arrangement for switching the sensitivity of receiving devices
IT1050947B (en) * 1975-11-17 1981-03-20 Indesit SIGNAL SELECTION CIRCUIT
US4207529A (en) * 1976-04-08 1980-06-10 Fujitsu Ten Limited Radio receiver
JPS54102814A (en) * 1978-01-30 1979-08-13 Sony Corp Synthesizer receiver
DE2804590A1 (en) * 1978-02-03 1979-08-09 Licentia Gmbh Muting circuit for radio receiver - suppresses click when changing from AM to FM etc. by providing temporary alternative path with conducting transistor
JPS54125911A (en) * 1978-03-24 1979-09-29 Japan Radio Co Ltd Automatic scan receiver
JPS54148417U (en) * 1978-04-07 1979-10-16
IT1107168B (en) 1978-06-26 1985-11-25 Indesit REFINEMENTS ON DEVICES FOR THE SELECTION OF A SIGNAL
NL184594C (en) * 1979-09-04 1989-09-01 Philips Nv RADIO RECEIVER EQUIPPED WITH A FREQUENCY KEYED LOOP WITH AUDIOFREQUENT FEEDBACK AND A STEAM SWITCH.

Also Published As

Publication number Publication date
IT1017534B (en) 1977-08-10
DE2400943C2 (en) 1984-02-23
GB1445031A (en) 1976-08-04
NL7400316A (en) 1974-07-11
CA1044765A (en) 1978-12-19
NL178554B (en) 1985-11-01
FR2332659B1 (en) 1978-03-24
DE2400943A1 (en) 1975-02-27
JPS5627024B2 (en) 1981-06-22
FR2332659A1 (en) 1977-06-17
JPS4992914A (en) 1974-09-04

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V4 Lapsed because of reaching the maxim lifetime of a patent