CA1075838A - Channel selection apparatus - Google Patents

Channel selection apparatus

Info

Publication number
CA1075838A
CA1075838A CA266,209A CA266209A CA1075838A CA 1075838 A CA1075838 A CA 1075838A CA 266209 A CA266209 A CA 266209A CA 1075838 A CA1075838 A CA 1075838A
Authority
CA
Canada
Prior art keywords
stored
channel selection
voltages
transformed
hadamard
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
CA266,209A
Other languages
English (en)
French (fr)
Inventor
Yoichi Sakamoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of CA1075838A publication Critical patent/CA1075838A/en
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
    • H03J5/0245—Discontinuous 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
    • H03J5/0254—Discontinuous 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 transfered to a D/A converter
    • H03J5/0263—Discontinuous 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 transfered to a D/A converter the digital values being held in an auxiliary non erasable memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
CA266,209A 1975-12-01 1976-11-22 Channel selection apparatus Expired CA1075838A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50143638A JPS5267201A (en) 1975-12-01 1975-12-01 Station selecting unit

Publications (1)

Publication Number Publication Date
CA1075838A true CA1075838A (en) 1980-04-15

Family

ID=15343412

Family Applications (1)

Application Number Title Priority Date Filing Date
CA266,209A Expired CA1075838A (en) 1975-12-01 1976-11-22 Channel selection apparatus

Country Status (7)

Country Link
US (1) US4209751A (enExample)
JP (1) JPS5267201A (enExample)
CA (1) CA1075838A (enExample)
DE (1) DE2654081C2 (enExample)
FR (1) FR2334241A1 (enExample)
GB (1) GB1521608A (enExample)
NL (1) NL186548C (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1051262B (it) * 1975-11-11 1981-04-21 Indesit Sintonizzatore a sintesi di frequenza
US4155043A (en) * 1976-04-28 1979-05-15 Matsushita Electric Industrial Co. Ltd. Channel selection apparatus including a scanning system
JPS55102934A (en) * 1979-02-01 1980-08-06 Sony Corp Variable frequency oscillation circuit
US4317225A (en) * 1979-05-30 1982-02-23 Rca Corporation Channel identification apparatus useful in a sweep type tuning system
NZ193794A (en) * 1979-05-30 1984-03-30 Rca Corp Channel identification in multiband sweep tuning system
US4291413A (en) * 1979-09-28 1981-09-22 Rca Corporation Search type tuning system with direct address channel selection apparatus
US4368541A (en) * 1980-06-30 1983-01-11 Evans Robert M Multiplexing arrangement for a plurality of voltage controlled filters
US4402089A (en) * 1981-09-16 1983-08-30 Rca Corporation Television tuning system with electronic frequency adjustment apparatus
GB2155263A (en) * 1984-03-02 1985-09-18 Philips Electronic Associated Frequency synthesised multichannel radio apparatus
JPH0738719B2 (ja) * 1984-08-20 1995-04-26 パイオニア株式会社 Ｃａｔｖ端末のチャンネル設定装置
US6028889A (en) * 1998-02-25 2000-02-22 Lucent Technologies, Inc. Pipelined fast hadamard transform
RU2132111C1 (ru) * 1998-05-26 1999-06-20 Военная академия связи Устройство автоматического поиска сигналов радиостанций
RU2202853C2 (ru) * 2001-04-10 2003-04-20 Курский государственный технический университет Устройство автоматического поиска сигналов радиостанций

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3588706A (en) * 1967-07-24 1971-06-28 Matsushita Electric Industrial Co Ltd Automatic tuning receiver
US3593801A (en) * 1969-11-26 1971-07-20 Joseph S De Palma Fluid-actuated fire extinguisher
US3792355A (en) * 1970-12-11 1974-02-12 Hitachi Ltd Orthogonal transformation circuit using hadamard matrices
US3810019A (en) * 1972-09-25 1974-05-07 Sperry Rand Corp Multifrequency communication system for fading channels
JPS5325721B2 (enExample) * 1973-11-07 1978-07-28
FR2251960B1 (enExample) * 1973-11-16 1977-08-12 Thomson Csf
US3942171A (en) * 1974-04-03 1976-03-02 Texas Instruments Incorporated Scanning system for digital-analog converter
PL89827B1 (enExample) * 1974-05-06 1976-12-31
JPS5415164B2 (enExample) * 1974-05-20 1979-06-13
US4001563A (en) * 1974-09-17 1977-01-04 Thomson-Csf Communication system for disseminating coded digital data in analogue form utilizing an orthogonal transformation
US4013957A (en) * 1975-04-26 1977-03-22 Kanda Tsushin Kogyo Co., Ltd. Channel-selecting apparatus for a multichannel transceiver
US3984626A (en) * 1975-08-01 1976-10-05 Bell Telephone Laboratories, Incorporated Picture signal coder
US4080659A (en) * 1977-02-28 1978-03-21 Francini Joseph P Multi-mode file storage calculator

Also Published As

Publication number Publication date
NL186548B (nl) 1990-07-16
GB1521608A (en) 1978-08-16
NL186548C (nl) 1990-12-17
JPS5746690B2 (enExample) 1982-10-05
AU1994676A (en) 1978-05-25
US4209751A (en) 1980-06-24
FR2334241B1 (enExample) 1982-08-20
DE2654081A1 (de) 1977-06-08
JPS5267201A (en) 1977-06-03
DE2654081C2 (de) 1982-06-16
FR2334241A1 (fr) 1977-07-01
NL7613308A (nl) 1977-06-03

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Legal Events

Date Code Title Description
MKEX Expiry