GB1136341A - Improvements in or relating to multitone code-signal receivers - Google Patents

Improvements in or relating to multitone code-signal receivers

Info

Publication number
GB1136341A
GB1136341A GB4701366A GB4701366A GB1136341A GB 1136341 A GB1136341 A GB 1136341A GB 4701366 A GB4701366 A GB 4701366A GB 4701366 A GB4701366 A GB 4701366A GB 1136341 A GB1136341 A GB 1136341A
Authority
GB
United Kingdom
Prior art keywords
signal
output
test device
code
control circuit
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
GB4701366A
Other languages
English (en)
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1136341A publication Critical patent/GB1136341A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q1/00Details of selecting apparatus or arrangements
    • H04Q1/18Electrical details
    • H04Q1/30Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453Signalling 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB4701366A 1965-10-23 1966-10-20 Improvements in or relating to multitone code-signal receivers Expired GB1136341A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6513752A NL6513752A (enrdf_load_html_response) 1965-10-23 1965-10-23

Publications (1)

Publication Number Publication Date
GB1136341A true GB1136341A (en) 1968-12-11

Family

ID=19794442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4701366A Expired GB1136341A (en) 1965-10-23 1966-10-20 Improvements in or relating to multitone code-signal receivers

Country Status (8)

Country Link
AT (1) AT263091B (enrdf_load_html_response)
BE (1) BE688746A (enrdf_load_html_response)
CH (1) CH455888A (enrdf_load_html_response)
DE (1) DE1487844C3 (enrdf_load_html_response)
DK (1) DK118349B (enrdf_load_html_response)
GB (1) GB1136341A (enrdf_load_html_response)
NL (1) NL6513752A (enrdf_load_html_response)
SE (1) SE345946B (enrdf_load_html_response)

Also Published As

Publication number Publication date
DE1487844C3 (de) 1975-08-07
CH455888A (de) 1968-05-15
NL6513752A (enrdf_load_html_response) 1967-04-24
BE688746A (enrdf_load_html_response) 1967-04-21
AT263091B (de) 1968-07-10
DE1487844B2 (de) 1975-01-02
DE1487844A1 (de) 1969-01-23
SE345946B (enrdf_load_html_response) 1972-06-12
DK118349B (da) 1970-08-10

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