BE600277A - Code signal transmitter and receiver assembly. - Google Patents

Code signal transmitter and receiver assembly.

Info

Publication number
BE600277A
BE600277A BE600277A BE600277A BE600277A BE 600277 A BE600277 A BE 600277A BE 600277 A BE600277 A BE 600277A BE 600277 A BE600277 A BE 600277A BE 600277 A BE600277 A BE 600277A
Authority
BE
Belgium
Prior art keywords
signal transmitter
code signal
receiver assembly
receiver
assembly
Prior art date
Application number
BE600277A
Other languages
French (fr)
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BE600277A publication Critical patent/BE600277A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
    • 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
    • H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Time-Division Multiplex Systems (AREA)
BE600277A 1960-02-16 1961-02-16 Code signal transmitter and receiver assembly. BE600277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE152160 1960-02-16

Publications (1)

Publication Number Publication Date
BE600277A true BE600277A (en) 1961-06-16

Family

ID=20258340

Family Applications (1)

Application Number Title Priority Date Filing Date
BE600277A BE600277A (en) 1960-02-16 1961-02-16 Code signal transmitter and receiver assembly.

Country Status (3)

Country Link
BE (1) BE600277A (en)
DE (1) DE1125008B (en)
GB (1) GB970315A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL292228A (en) * 1962-05-21
DE1232211B (en) * 1963-04-02 1967-01-12 Standard Elektrik Lorenz Ag Circuit arrangement for protection against incorrect response by receivers in telecommunications, in particular telephone systems with multi-frequency code dialing
DE1290563B (en) * 1963-07-16 1969-03-13 Siemens Ag Circuit arrangement for telecommunications systems with an asynchronous combination multiple
DE1248118B (en) * 1964-11-18 1967-08-24 Siemens Ag Circuit arrangement for receiving multiple, in particular two-frequency code characters sent in pulses in telecommunications, in particular telephone switching systems
GB2324006B (en) * 1997-04-02 2001-08-22 David Williams Electronic modulation scheme

Also Published As

Publication number Publication date
GB970315A (en) 1964-09-16
DE1125008B (en) 1962-03-08

Similar Documents

Publication Publication Date Title
BE606814A (en) Data transmission systems.
CH393144A (en) Magnetic-electrical signal transmitter
OA00265A (en) Construction toy element.
BE586691A (en) Signal receiver.
CH417408A (en) Magnetic-electrical signal transmitter
BE600277A (en) Code signal transmitter and receiver assembly.
NL141729B (en) REMAINING SIDEBAND TRANSMITTER.
DK109522C (en) Radio navigation systems, as well as receivers and transmission systems therefor.
BE603601A (en) Low-frequency signal discriminator
FR1282838A (en) Code signal transmitter and receiver assembly
BE602208A (en) Receiver of signals manipulated in phase.
FR1337377A (en) Signal detection circuit
DK114908B (en) Electronic tachograph receiver.
FR1264496A (en) Electronic signal reception device
FR1252521A (en) Signal receiver
FR1280868A (en) Radio transmission system
FR1253442A (en) TV or t antenna. s. f.
FR1343233A (en) Telegraph signal receiver
BE605013A (en) AC signal receiver.
FR1293798A (en) Telegraph system with signal check and error correction
BE606998A (en) Signal receivers
CH395188A (en) Signal transmission system
BE613640A (en) Signal sequence detectors.
BE610562A (en) Data transmitter
ES84847Y (en) Improved radio receiver