[go: up one dir, main page]

ES439186A1 - Perfeccionamientos introducidos en las instalaciones de bus-ca personas. - Google Patents

Perfeccionamientos introducidos en las instalaciones de bus-ca personas.

Info

Publication number
ES439186A1
ES439186A1 ES439186A ES439186A ES439186A1 ES 439186 A1 ES439186 A1 ES 439186A1 ES 439186 A ES439186 A ES 439186A ES 439186 A ES439186 A ES 439186A ES 439186 A1 ES439186 A1 ES 439186A1
Authority
ES
Spain
Prior art keywords
well
frequency
steps
call
directly
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
ES439186A
Other languages
English (en)
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.)
Hasler AG
Original Assignee
Hasler AG
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 Hasler AG filed Critical Hasler AG
Publication of ES439186A1 publication Critical patent/ES439186A1/es
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B5/00Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/77Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
ES439186A 1974-07-11 1975-07-05 Perfeccionamientos introducidos en las instalaciones de bus-ca personas. Expired ES439186A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH949774A CH573688A5 (fi) 1974-07-11 1974-07-11

Publications (1)

Publication Number Publication Date
ES439186A1 true ES439186A1 (es) 1977-03-01

Family

ID=4352615

Family Applications (1)

Application Number Title Priority Date Filing Date
ES439186A Expired ES439186A1 (es) 1974-07-11 1975-07-05 Perfeccionamientos introducidos en las instalaciones de bus-ca personas.

Country Status (10)

Country Link
JP (1) JPS5132203A (fi)
BE (1) BE831258A (fi)
CH (1) CH573688A5 (fi)
DE (1) DE2450289C3 (fi)
ES (1) ES439186A1 (fi)
FR (1) FR2278216A1 (fi)
GB (1) GB1500169A (fi)
IT (1) IT1036221B (fi)
NL (1) NL7508313A (fi)
SE (1) SE418654B (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2738278C2 (de) * 1977-08-25 1982-06-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Funkanlage mit drahtloser Übertragung zwischen tragbaren Sende-Empfangs-Geräten und mit selektivem Anruf der Teilnehmer untereinander unter Zwischenschaltung einer Zentrale
DE3016809A1 (de) * 1980-05-02 1982-01-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Funkmeldesystem
JPS5815348A (ja) * 1981-07-22 1983-01-28 Yagi Antenna Co Ltd 空間光デ−タ伝送装置
JPS60142100U (ja) * 1984-02-24 1985-09-20 株式会社 日立工機原町 肉切機
JPS6346572A (ja) * 1986-08-13 1988-02-27 Toshiba Corp 検索装置
JPS63198395U (fi) * 1987-06-10 1988-12-21
AU607022B2 (en) * 1987-12-01 1991-02-21 Ascom Tateco Ab Paging system with paging receivers controlled depending on location
WO2013081559A2 (en) * 2011-11-30 2013-06-06 Abdul Barr Al Fakhouri Hani A new technique to give a huge number of information channels on mobile phone, very cheap for subscribers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166735A (en) 1958-10-06 1965-01-19 Gen Electric Code selectors for selective calling systems
DE1966370C3 (de) * 1969-09-17 1979-12-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anordnung zum Empfang und zur Aussendung einer binär codierten Information
BE756213A (fr) * 1969-09-17 1971-03-01 Licentia Gmbh Procede pour la transmission d'une instruction d'appel selectifdigitaleet protegee avec reponse de retour, et dispositif pour la mise en oeuvre du procede
NL7110022A (fi) * 1971-07-21 1973-01-23
US3851251A (en) 1971-10-25 1974-11-26 Martin Marietta Corp Receiver method and apparatus

Also Published As

Publication number Publication date
SE418654B (sv) 1981-06-15
CH573688A5 (fi) 1976-03-15
DE2450289C3 (de) 1986-01-09
FR2278216A1 (fr) 1976-02-06
GB1500169A (en) 1978-02-08
DE2450289A1 (de) 1976-01-22
NL7508313A (nl) 1976-01-13
IT1036221B (it) 1979-10-30
JPS5132203A (fi) 1976-03-18
DE2450289B2 (de) 1979-10-18
SE7507757L (sv) 1976-01-12
FR2278216B1 (fi) 1982-01-29
BE831258A (fr) 1975-11-03

Similar Documents

Publication Publication Date Title
AT373455B (de) Verbesserte unempfindlichkeit gegenueber frequenzselektiver daempfung aufweisendes digitales datenuebertragungssystem
AT300894B (de) Rundfunkempfänger für Einseitenbandempfang
ES419590A1 (es) Sistema de control remoto.
ES439186A1 (es) Perfeccionamientos introducidos en las instalaciones de bus-ca personas.
JPS522317A (en) Video signal transmitting system
MX142977A (es) Mejoras a un transmisor receptor de radio frecuencia
SE391094B (sv) Kombinerad mikrovagsendar- och mottagaranordning
SE382541B (sv) Sendare och mottagare vid ett med frekvensmultiplex arbetande telekommunikationssystem.
SE393013B (sv) Sendare/mottagare
JPS5245813A (en) Wireless telephone system
ES336386A1 (es) Sistema de supervision para sistemas de telecomunicacion multiple por division de tiempo.
AR216939A1 (es) Receptor de radiodifusion con senales codificadas
JPS5222415A (en) Radio receiver with clock
JPS5255405A (en) Pilot test system
JPS535511A (en) Digital multi-frequency receiver
SE7507850L (sv) Radiosendaremottagare med mer en en radiofrekvenskanal for digital taltransmission
JPS5264259A (en) Ghost deletion type reception antenna
JPS5210015A (en) Transmitter and receiver with wide band range cable
SE399624B (sv) Sendaraordning och mottagaranordning i en anleggning for overforing av ett givet antal basbandkanalsignaler
JPS5419303A (en) Transmission and reception system of signal
FR1371537A (fr) Système double de réglage silencieux pour radio-récepteur
JPS5354904A (en) Dial signal transmission system
JPS5443405A (en) Digital radio communication system
JPS5222413A (en) Radio receiver with clock
JPS5242302A (en) Inter-call system

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971001