JPS4979653A - - Google Patents

Info

Publication number
JPS4979653A
JPS4979653A JP48124877A JP12487773A JPS4979653A JP S4979653 A JPS4979653 A JP S4979653A JP 48124877 A JP48124877 A JP 48124877A JP 12487773 A JP12487773 A JP 12487773A JP S4979653 A JPS4979653 A JP S4979653A
Authority
JP
Japan
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.)
Granted
Application number
JP48124877A
Other languages
Japanese (ja)
Other versions
JPS5330561B2 (en:Method
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 filed Critical
Publication of JPS4979653A publication Critical patent/JPS4979653A/ja
Publication of JPS5330561B2 publication Critical patent/JPS5330561B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/022—Selective call receivers
    • H04W88/025—Selective call decoders
    • H04W88/027—Selective call decoders using frequency address codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
    • H03H11/1252—Two integrator-loop-filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Networks Using Active Elements (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
JP12487773A 1972-11-07 1973-11-06 Expired JPS5330561B2 (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00304440A US3803429A (en) 1972-11-07 1972-11-07 Switchable frequency tone filter and detector with high speed switching capability

Publications (2)

Publication Number Publication Date
JPS4979653A true JPS4979653A (en:Method) 1974-08-01
JPS5330561B2 JPS5330561B2 (en:Method) 1978-08-28

Family

ID=23176520

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12487773A Expired JPS5330561B2 (en:Method) 1972-11-07 1973-11-06

Country Status (12)

Country Link
US (1) US3803429A (en:Method)
JP (1) JPS5330561B2 (en:Method)
AR (1) AR201118A1 (en:Method)
AU (1) AU474076B2 (en:Method)
BR (1) BR7308706D0 (en:Method)
CA (1) CA985753A (en:Method)
DE (1) DE2355700C3 (en:Method)
FR (1) FR2205779B1 (en:Method)
GB (1) GB1412897A (en:Method)
HK (1) HK65176A (en:Method)
IL (1) IL43528A (en:Method)
ZA (1) ZA738270B (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107701A (en:Method) * 1975-03-18 1976-09-24 Nippon Electric Co

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50135962A (en:Method) * 1974-04-16 1975-10-28
US4019142A (en) * 1974-08-16 1977-04-19 Wycoff Keith H Selectively callable receiver operated in accordance with tone characteristics
JPS5146235U (en:Method) * 1974-10-04 1976-04-05
AT343213B (de) * 1975-04-08 1978-05-10 Funktechnisches Labor Ernst F Schaltungsanordnung fur einen empfanger fur impulsfolgen
JPS5366309A (en) * 1976-11-26 1978-06-13 Nec Corp Digital type tone signal detector
GB1562121A (en) * 1976-11-26 1980-03-05 Nippon Electric Co Tone signal detecting circuits
US4126831A (en) * 1977-04-27 1978-11-21 Texas Instruments Incorporated Electronic phase detector circuit
US4419765A (en) * 1979-10-12 1983-12-06 Keith H. Wycoff Signal absence detector
US4578533A (en) * 1980-11-03 1986-03-25 Universal Data Systems, Inc. Switchable line powered modem
JPS57131991A (en) * 1981-02-09 1982-08-16 Matsushita Electric Ind Co Ltd Gravitation type heat pipe
EP0142586A1 (en) * 1983-11-17 1985-05-29 Budapesti Radiotechnikai Gyar A filter arrangement with active elements
US4659996A (en) * 1984-02-27 1987-04-21 Motorola, Inc. Method and apparatus for de-ringing a switched capacitor filter
JPS61276695A (ja) * 1985-05-31 1986-12-06 Sumitomo Electric Ind Ltd 複合パイプ、その製造方法及びそれを利用したヒ−トパイプ
ATE57051T1 (de) * 1986-03-11 1990-10-15 Acec Verfahren zum uebertragen von signalen bestimmter frequenz, insbesondere fernschreibsignalen.
GB2217539B (en) * 1988-04-14 1992-09-23 Plessey Co Plc Prescaler output filter
DE3922977A1 (de) * 1989-07-12 1991-01-24 Texas Instruments Deutschland Trimmschaltung und unter verwendung einer solchen trimmschaltung ausfuehrbares abgleichverfahren
US5142255A (en) * 1990-05-07 1992-08-25 The Texas A&M University System Planar active endfire radiating elements and coplanar waveguide filters with wide electronic tuning bandwidth
DE4038291A1 (de) * 1990-11-29 1992-06-04 Funkwerk Koepenick Gmbh I A Anordnung fuer die auswertung von selektivrufen
US20100072655A1 (en) * 2008-09-23 2010-03-25 Cryovac, Inc. Die, system, and method for coextruding a plurality of fluid layers
US8876512B2 (en) * 2008-09-23 2014-11-04 Cryovac, Inc. Die for coextruding a plurality of fluid layers
US8012572B2 (en) * 2009-03-06 2011-09-06 Cryovac, Inc. Multilayer, heat-shrinkable film comprising a plurality of microlayers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE708317C (de) * 1939-01-17 1943-04-22 Telefunken Gmbh Anordnung zur Daempfung eines an einen Sender angeschlossenen Belastungskreises, insbesondere der Antenne eines Telegraphiesenders, in den Belastungspausen
CH294530A (de) * 1951-10-04 1953-11-15 Patelhold Patentverwertung Verfahren und Einrichtung zum Senden von Impulssignalen mit Frequenztastung, insbesondere für drahtlose Telegraphie.
US3670242A (en) * 1969-12-03 1972-06-13 Lear Siegler Inc A selective paging receiver and decoder employing an electronic filter means
FR2128019B2 (en:Method) * 1970-04-08 1973-05-11 Cit Alcatel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51107701A (en:Method) * 1975-03-18 1976-09-24 Nippon Electric Co

Also Published As

Publication number Publication date
FR2205779B1 (en:Method) 1978-02-10
AU6185673A (en) 1975-05-01
HK65176A (en) 1976-10-22
US3803429A (en) 1974-04-09
AR201118A1 (es) 1975-02-14
IL43528A (en) 1976-05-31
DE2355700C3 (de) 1986-01-09
DE2355700B2 (de) 1977-03-10
JPS5330561B2 (en:Method) 1978-08-28
BR7308706D0 (pt) 1974-08-22
FR2205779A1 (en:Method) 1974-05-31
CA985753A (en) 1976-03-16
IL43528A0 (en) 1974-06-30
GB1412897A (en) 1975-11-05
DE2355700A1 (de) 1974-05-22
AU474076B2 (en) 1976-07-15
ZA738270B (en) 1974-09-25

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