ES402770A1 - Un dispositivo de filtro de onda superficial de frecuencia intermedia para un receptor de television en color. - Google Patents

Un dispositivo de filtro de onda superficial de frecuencia intermedia para un receptor de television en color.

Info

Publication number
ES402770A1
ES402770A1 ES402770A ES402770A ES402770A1 ES 402770 A1 ES402770 A1 ES 402770A1 ES 402770 A ES402770 A ES 402770A ES 402770 A ES402770 A ES 402770A ES 402770 A1 ES402770 A1 ES 402770A1
Authority
ES
Spain
Prior art keywords
transducer
output
signal
television receiver
input
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
ES402770A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES402770A1 publication Critical patent/ES402770A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/1455—Transducers of particular shape or position constituted of N parallel or series transducers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H9/72—Networks using surface acoustic waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Transducers For Ultrasonic Waves (AREA)
ES402770A 1971-05-18 1972-05-16 Un dispositivo de filtro de onda superficial de frecuencia intermedia para un receptor de television en color. Expired ES402770A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1548271 1971-05-18

Publications (1)

Publication Number Publication Date
ES402770A1 true ES402770A1 (es) 1975-10-16

Family

ID=10059918

Family Applications (1)

Application Number Title Priority Date Filing Date
ES402770A Expired ES402770A1 (es) 1971-05-18 1972-05-16 Un dispositivo de filtro de onda superficial de frecuencia intermedia para un receptor de television en color.

Country Status (9)

Country Link
JP (1) JPS5341937B1 (es)
AU (1) AU468110B2 (es)
BE (1) BE783542A (es)
DE (1) DE2220924C3 (es)
ES (1) ES402770A1 (es)
FR (1) FR2138105B1 (es)
GB (1) GB1351286A (es)
IT (1) IT958874B (es)
NL (1) NL7206490A (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1554366A (en) * 1977-02-04 1979-10-17 Philips Electronic Associated Acoustic surface wave devices
FR2428350A1 (fr) * 1978-06-06 1980-01-04 Thomson Csf Filtre a ondes elastiques de surface et etage de frequence intermediaire d'un recepteur de television comprenant un tel filtre
JPS55134587A (en) * 1979-04-05 1980-10-20 Sanyo Electric Co Ltd Color television receiver
JPS57172422U (es) * 1981-04-25 1982-10-30
JPS5857813A (ja) * 1981-10-02 1983-04-06 Hitachi Ltd 振幅周波数特性の可変な弾性表面波装置
US4604595A (en) * 1982-06-16 1986-08-05 Murata Manufacturing Co., Ltd. Surface acoustic wave device having interdigitated comb electrodes weighted for odd/even response
GB2157522B (en) * 1984-04-09 1987-08-19 Philips Electronic Associated Electrical filter comprising an acoustic surface wave device, and method of manufacturing such a filter

Also Published As

Publication number Publication date
IT958874B (it) 1973-10-30
NL7206490A (es) 1972-11-21
DE2220924A1 (de) 1972-12-07
AU4220572A (en) 1973-11-15
BE783542A (fr) 1972-11-16
DE2220924B2 (de) 1979-02-01
FR2138105B1 (es) 1973-07-13
JPS5341937B1 (es) 1978-11-08
DE2220924C3 (de) 1979-09-20
GB1351286A (en) 1974-04-24
AU468110B2 (en) 1976-01-08
FR2138105A1 (es) 1972-12-29

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