DE2261580C3 - Kanalwähler - Google Patents

Kanalwähler

Info

Publication number
DE2261580C3
DE2261580C3 DE2261580A DE2261580A DE2261580C3 DE 2261580 C3 DE2261580 C3 DE 2261580C3 DE 2261580 A DE2261580 A DE 2261580A DE 2261580 A DE2261580 A DE 2261580A DE 2261580 C3 DE2261580 C3 DE 2261580C3
Authority
DE
Germany
Prior art keywords
current
diodes
voltage
transistor
channel
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
DE2261580A
Other languages
German (de)
English (en)
Other versions
DE2261580B2 (de
DE2261580A1 (de
Inventor
Shinichi Fujisawa Kanagawa Makino
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co Ltd
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
Priority claimed from JP10140471A external-priority patent/JPS528046B2/ja
Priority claimed from JP3244372A external-priority patent/JPS5240423B2/ja
Application filed by Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Publication of DE2261580A1 publication Critical patent/DE2261580A1/de
Publication of DE2261580B2 publication Critical patent/DE2261580B2/de
Application granted granted Critical
Publication of DE2261580C3 publication Critical patent/DE2261580C3/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03J5/02—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0218—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, by selecting the corresponding analogue value between a set of preset values

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Amplifiers (AREA)
DE2261580A 1971-12-16 1972-12-15 Kanalwähler Expired DE2261580C3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10140471A JPS528046B2 (OSRAM) 1971-12-16 1971-12-16
JP3244372A JPS5240423B2 (OSRAM) 1972-03-31 1972-03-31

Publications (3)

Publication Number Publication Date
DE2261580A1 DE2261580A1 (de) 1973-06-28
DE2261580B2 DE2261580B2 (de) 1980-03-27
DE2261580C3 true DE2261580C3 (de) 1985-03-14

Family

ID=26371017

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2261580A Expired DE2261580C3 (de) 1971-12-16 1972-12-15 Kanalwähler

Country Status (5)

Country Link
US (1) US3777289A (OSRAM)
CA (1) CA964735A (OSRAM)
DE (1) DE2261580C3 (OSRAM)
GB (1) GB1356553A (OSRAM)
NL (1) NL7217186A (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS544014A (en) * 1977-06-10 1979-01-12 Pioneer Electronic Corp Muutuning circuit for electronic tuning receiver
DE2945546C2 (de) * 1979-11-10 1983-09-29 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung für abstimmbare HF-Kreise
US6867470B1 (en) * 2002-10-09 2005-03-15 National Semiconductor Corporation Multi-slope analog temperature sensor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1201385A (en) * 1966-08-30 1970-08-05 Matsushita Electric Industrial Co Ltd Tuner for television receiver
GB1316871A (en) * 1969-05-20 1973-05-16 Matsushita Electric Industrial Co Ltd Tuning system for selecting channels

Also Published As

Publication number Publication date
CA964735A (en) 1975-03-18
GB1356553A (en) 1974-06-12
US3777289A (en) 1973-12-04
DE2261580B2 (de) 1980-03-27
NL7217186A (OSRAM) 1973-06-19
DE2261580A1 (de) 1973-06-28

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Legal Events

Date Code Title Description
8281 Inventor (new situation)

Free format text: MAKINO, SHINICHI, FUJISAWA, KANAGAWA, JP

C3 Grant after two publication steps (3rd publication)
8327 Change in the person/name/address of the patent owner

Owner name: KABUSHIKI KAISHA TOSHIBA, KAWASAKI, KANAGAWA, JP

8328 Change in the person/name/address of the agent

Free format text: ASSMANN, E., DIPL.-CHEM. DR.RER.NAT. ZUMSTEIN, F., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 8000 MUENCHEN

8339 Ceased/non-payment of the annual fee