ES401910A1 - Remote control system - Google Patents

Remote control system

Info

Publication number
ES401910A1
ES401910A1 ES401910A ES401910A ES401910A1 ES 401910 A1 ES401910 A1 ES 401910A1 ES 401910 A ES401910 A ES 401910A ES 401910 A ES401910 A ES 401910A ES 401910 A1 ES401910 A1 ES 401910A1
Authority
ES
Spain
Prior art keywords
control system
remote control
occurrence
frequency
signal
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
ES401910A
Other languages
Spanish (es)
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 ES401910A1 publication Critical patent/ES401910A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J9/00—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification
    • H03J9/04—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification using ultrasonic, sonic or infrasonic waves

Abstract

An ultrasonic remote control system in which the influence of echoes on a pulse duration information transmission is prevented by using signals having a first and a second frequency and in which the occurrence of the signal having the first frequency determines the commencement of the pulse duration information and the occurrence of the signal having the second frequency determines the end of this information.
ES401910A 1971-04-21 1972-04-19 Remote control system Expired ES401910A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7105352A NL7105352A (en) 1971-04-21 1971-04-21

Publications (1)

Publication Number Publication Date
ES401910A1 true ES401910A1 (en) 1975-11-01

Family

ID=19812974

Family Applications (1)

Application Number Title Priority Date Filing Date
ES401910A Expired ES401910A1 (en) 1971-04-21 1972-04-19 Remote control system

Country Status (17)

Country Link
US (1) US3798601A (en)
JP (1) JPS5524316B1 (en)
AT (1) AT340153B (en)
AU (1) AU472523B2 (en)
BE (1) BE782340A (en)
BR (2) BR7202459D0 (en)
CA (1) CA971265A (en)
CH (1) CH555114A (en)
DE (1) DE2217560C3 (en)
ES (1) ES401910A1 (en)
FR (1) FR2136561A5 (en)
GB (1) GB1376208A (en)
IT (1) IT953664B (en)
NL (1) NL7105352A (en)
SE (1) SE392178B (en)
YU (1) YU34748B (en)
ZA (1) ZA722537B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5031398U (en) * 1973-07-19 1975-04-07
JPS5650477B2 (en) * 1973-08-16 1981-11-28
DE2455991A1 (en) * 1974-11-27 1976-08-12 Licentia Gmbh CIRCUIT ARRANGEMENT FOR EVALUATING RECEIVED VIBRATIONS OF PRE-DETERMINED FREQUENCY IN A CONTROL CIRCUIT, IN PARTICULAR FOR AN ULTRASONIC REMOTE CONTROL
DE2456005A1 (en) * 1974-11-27 1976-08-12 Licentia Gmbh CIRCUIT ARRANGEMENT FOR DETERMINING THE TIME DURATION OF RECEIVED VIBRATIONS, IN PARTICULAR FOR AN ULTRASONIC REMOTE CONTROL OF A TV
NL7504617A (en) * 1975-04-18 1976-10-20 Philips Nv METHOD OF TRANSMISSION OF BINARY INFORMATION BY MEANS OF A FREQUENCY MODULATED SIGNAL AND CIRCUIT FOR PERFORMING THAT METHOD.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3098212A (en) * 1959-05-11 1963-07-16 Philco Corp Remote control system with pulse duration responsive means
US3161728A (en) * 1961-12-18 1964-12-15 Rose Ned Communication network
US3355709A (en) * 1965-01-14 1967-11-28 Motorola Inc Code receiver responsive to plural tones in sequence
US3513399A (en) * 1967-10-17 1970-05-19 Keith H Wycoff Tone control circuit
US3611298A (en) * 1969-03-07 1971-10-05 Computer Transceiver Systems Data transmission system
US3716790A (en) * 1970-05-11 1973-02-13 Lorain Electronics Corp Single sideband system utilizing two tone modulation
US3686634A (en) * 1971-04-02 1972-08-22 Esb Inc Pulse rate monitor and indicator system utilizing a burst pulse counter and a pulse internal counter

Also Published As

Publication number Publication date
BR7202459D0 (en) 1974-12-31
DE2217560A1 (en) 1972-10-26
CH555114A (en) 1974-10-15
BE782340A (en) 1972-10-19
AT340153B (en) 1977-11-25
DE2217560B2 (en) 1977-11-10
ZA722537B (en) 1973-11-28
CA971265A (en) 1975-07-15
NL7105352A (en) 1972-10-24
ATA339072A (en) 1977-03-15
YU106372A (en) 1979-07-10
IT953664B (en) 1973-08-10
JPS5524316B1 (en) 1980-06-27
DE2217560C3 (en) 1978-06-29
FR2136561A5 (en) 1972-12-22
BR7202259D0 (en) 1973-06-28
AU4131272A (en) 1973-10-25
GB1376208A (en) 1974-12-04
US3798601A (en) 1974-03-19
YU34748B (en) 1979-12-31
AU472523B2 (en) 1976-05-27
SE392178B (en) 1977-03-14

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