GB1204190A - Multiplex communication system - Google Patents

Multiplex communication system

Info

Publication number
GB1204190A
GB1204190A GB5853367A GB5853367A GB1204190A GB 1204190 A GB1204190 A GB 1204190A GB 5853367 A GB5853367 A GB 5853367A GB 5853367 A GB5853367 A GB 5853367A GB 1204190 A GB1204190 A GB 1204190A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
signal
pulse
pulses
oscillator
output
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
GB5853367A
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.)
MAINICHI BROADCASTING SYSTEM
NEC Corp
Original Assignee
MAINICHI BROADCASTING SYSTEM
NEC Corp
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/08Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0881Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital the signal being time-compressed before its insertion and subsequently decompressed at reception
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M11/00Telephonic communication systems adapted for combination with other electrical systems
    • H04M11/06Simultaneous speech and telegraphic or other data transmission over the same conductors
    • H04M11/064Data transmission during pauses in telephone conversation

Abstract

1,204,190. Multiplex pulse signalling. MAINICHI BROADCASTING SYSTEM and NIPPON ELECTRIC CO. Ltd. 22 Dec., 1967 [26 Dec., 1966], No. 58533/67. Heading H4L. Means are provided for transmitting a signal A, e.g. a facsimile signal, in repetitive gaps in a signal B, e.g. a television signal. As described, a facsimile signal in the form of a binary pulse train is transmitted during the vertical blanking intervals of a television signal, the pulses being positioned so that they avoid the blacker than black level and being such that they do not exceed the peak white level. The pulses of signal B are written into a store by a continuous pulse train and read out at a higher speed by pulse groups during the vertical blanking period, the converse occurring at the receiver. At the television transmitter the output of a facsimile transmitter 1 is detected at 2 and supplied to a twenty bit shift register 6 under the control of pulses from 7. The television signal is supplied via terminal 13 to a mixer 11, the vertical and horizontal sync. signals being selected at 12 and supplied to control the oscillator and frequency multipliers 3 and 5 respectively. Oscillator 3 produces an output frequency of 1200 c/s. in response to the input of 60 c/s. and oscillator 5 produces an output of 63 kc/s. with an input of 15À75 kc/s. The output of oscillator 5 is gated at 8, to produce a group of twenty pulses at an appropriate time within each vertical blanking interval, by a pulse from generator 4 controlled by the vertical sync. signal. These pulse groups together with the 1200 c/s. pulse train are supplied via the mixer 7 to the shift register 6, the facsimile signal being written in by the 1200 c/s. pulse train and read out by the pulse groups. The output of the register is supplied via a pulse shaper 10 controlled by the pulses from gate 8, to a mixer 11 where it is combined with the television signal. Similar equipment is provided at the receiver for extracting the facsimile signal. In a modification, instead of the presence or absence of pulses representing the facsimile signal, two different pulse durations are used so that the timing information for the pulse groups is contained in the groups, thus enabling the pulse generator 4, oscillator 5 and gate 8 to be dispensed with at the receiver. In a further arrangement a group of reference pulses may precede or follow the group of pulses carrying the facsimile signal.
GB5853367A 1966-12-26 1967-12-22 Multiplex communication system Expired GB1204190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8499966 1966-12-26

Publications (1)

Publication Number Publication Date
GB1204190A true true GB1204190A (en) 1970-09-03

Family

ID=13846311

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5853367A Expired GB1204190A (en) 1966-12-26 1967-12-22 Multiplex communication system

Country Status (1)

Country Link
GB (1) GB1204190A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5600573A (en) 1992-12-09 1997-02-04 Discovery Communications, Inc. Operations center with video storage for a television program packaging and delivery system
US5659350A (en) * 1992-12-09 1997-08-19 Discovery Communications, Inc. Operations center for a television program packaging and delivery system
US5682195A (en) * 1992-12-09 1997-10-28 Discovery Communications, Inc. Digital cable headend for cable television delivery system
US5798785A (en) 1992-12-09 1998-08-25 Discovery Communications, Inc. Terminal for suggesting programs offered on a television program delivery system
US5826167A (en) 1994-09-12 1998-10-20 Scientific-Atlanta, Inc. Bi-directional cable television system including a UHF filter
US5986690A (en) 1992-12-09 1999-11-16 Discovery Communications, Inc. Electronic book selection and delivery system
US6181335B1 (en) 1992-12-09 2001-01-30 Discovery Communications, Inc. Card for a set top terminal
US6463585B1 (en) 1992-12-09 2002-10-08 Discovery Communications, Inc. Targeted advertisement using television delivery systems
US6738978B1 (en) 1992-12-09 2004-05-18 Discovery Communications, Inc. Method and apparatus for targeted advertising
US7734251B1 (en) 1981-11-03 2010-06-08 Personalized Media Communications, Llc Signal processing apparatus and methods
US7769344B1 (en) 1981-11-03 2010-08-03 Personalized Media Communications, Llc Signal processing apparatus and methods
US7835989B1 (en) 1992-12-09 2010-11-16 Discovery Communications, Inc. Electronic book alternative delivery systems
US7849393B1 (en) 1992-12-09 2010-12-07 Discovery Communications, Inc. Electronic book connection to world watch live
US7861166B1 (en) 1993-12-02 2010-12-28 Discovery Patent Holding, Llc Resizing document pages to fit available hardware screens
US7865567B1 (en) 1993-12-02 2011-01-04 Discovery Patent Holdings, Llc Virtual on-demand electronic book
US7865405B2 (en) 1992-12-09 2011-01-04 Discovery Patent Holdings, Llc Electronic book having electronic commerce features
US8073695B1 (en) 1992-12-09 2011-12-06 Adrea, LLC Electronic book with voice emulation features
US8095949B1 (en) 1993-12-02 2012-01-10 Adrea, LLC Electronic book with restricted access features
US9009773B1 (en) 1998-06-30 2015-04-14 Cox Communications, Inc. Method and apparatus for providing broadcast data services
US9053640B1 (en) 1993-12-02 2015-06-09 Adrea, LLC Interactive electronic book

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US7734251B1 (en) 1981-11-03 2010-06-08 Personalized Media Communications, Llc Signal processing apparatus and methods
US7747217B1 (en) * 1981-11-03 2010-06-29 Personalized Media Communications, Llc Signal processing apparatus and methods
US7752650B1 (en) 1981-11-03 2010-07-06 Personalized Media Communications, Llc Signal processing apparatus and methods
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US7761890B1 (en) 1981-11-03 2010-07-20 Personalized Media Communications, Llc Signal processing apparatus and methods
US7764685B1 (en) 1981-11-03 2010-07-27 Personalized Media Communications, L.L.C. Signal processing apparatus and methods
US7769170B1 (en) 1981-11-03 2010-08-03 Personalized Media Communications, Llc Signal processing apparatus and methods
US7769344B1 (en) 1981-11-03 2010-08-03 Personalized Media Communications, Llc Signal processing apparatus and methods
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US7784082B1 (en) 1981-11-03 2010-08-24 Personalized Media Communications, Llc Signal processing apparatus and methods
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US7818777B1 (en) 1981-11-03 2010-10-19 Personalized Media Communications, Llc Signal processing apparatus and methods
US7823175B1 (en) 1981-11-03 2010-10-26 Personalized Media Communications LLC Signal processing apparatus and methods
US7827586B1 (en) 1981-11-03 2010-11-02 Personalized Media Communications, Llc Signal processing apparatus and methods
US7827587B1 (en) 1981-11-03 2010-11-02 Personalized Media Communications, Llc Signal processing apparatus and methods
US7830925B1 (en) 1981-11-03 2010-11-09 Personalized Media Communications, Llc Signal processing apparatus and methods
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US8675775B1 (en) 1981-11-03 2014-03-18 Personalized Media Communications, Llc Signal processing apparatus and methods
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US8635644B1 (en) 1981-11-03 2014-01-21 Personalized Media Communications LLC Signal processing apparatus and methods
US8621547B1 (en) 1981-11-03 2013-12-31 Personalized Media Communications, Llc Signal processing apparatus and methods
US7864248B1 (en) 1981-11-03 2011-01-04 Personalized Media Communications, Llc Signal processing apparatus and methods
US7865920B1 (en) 1981-11-03 2011-01-04 Personalized Media Communications LLC Signal processing apparatus and methods
US7870581B1 (en) 1981-11-03 2011-01-11 Personalized Media Communications, Llc Signal processing apparatus and methods
US7889865B1 (en) 1981-11-03 2011-02-15 Personalized Media Communications, L.L.C. Signal processing apparatus and methods
US7908638B1 (en) 1981-11-03 2011-03-15 Personalized Media Communications LLC Signal processing apparatus and methods
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US8613034B1 (en) 1981-11-03 2013-12-17 Personalized Media Communications, Llc Signal processing apparatus and methods
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US8587720B1 (en) 1981-11-03 2013-11-19 Personalized Media Communications LLC Signal processing apparatus and methods
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US5659350A (en) * 1992-12-09 1997-08-19 Discovery Communications, Inc. Operations center for a television program packaging and delivery system
US8073695B1 (en) 1992-12-09 2011-12-06 Adrea, LLC Electronic book with voice emulation features
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US5682195A (en) * 1992-12-09 1997-10-28 Discovery Communications, Inc. Digital cable headend for cable television delivery system
US5734853A (en) 1992-12-09 1998-03-31 Discovery Communications, Inc. Set top terminal for cable television delivery systems
US7849393B1 (en) 1992-12-09 2010-12-07 Discovery Communications, Inc. Electronic book connection to world watch live
US7835989B1 (en) 1992-12-09 2010-11-16 Discovery Communications, Inc. Electronic book alternative delivery systems
US5600573A (en) 1992-12-09 1997-02-04 Discovery Communications, Inc. Operations center with video storage for a television program packaging and delivery system
US7716349B1 (en) 1992-12-09 2010-05-11 Discovery Communications, Inc. Electronic book library/bookstore system
US6539548B1 (en) 1992-12-09 2003-03-25 Discovery Communications, Inc. Operations center for a television program packaging and delivery system
US6515680B1 (en) 1992-12-09 2003-02-04 Discovery Communications, Inc. Set top terminal for television delivery system
US6463585B1 (en) 1992-12-09 2002-10-08 Discovery Communications, Inc. Targeted advertisement using television delivery systems
US6408437B1 (en) 1992-12-09 2002-06-18 Discovery Communications, Inc. Reprogrammable terminal for suggesting programs offered on a television program delivery system
US6181335B1 (en) 1992-12-09 2001-01-30 Discovery Communications, Inc. Card for a set top terminal
US6052554A (en) 1992-12-09 2000-04-18 Discovery Communications, Inc. Television program delivery system
US5986690A (en) 1992-12-09 1999-11-16 Discovery Communications, Inc. Electronic book selection and delivery system
US6738978B1 (en) 1992-12-09 2004-05-18 Discovery Communications, Inc. Method and apparatus for targeted advertising
US8095949B1 (en) 1993-12-02 2012-01-10 Adrea, LLC Electronic book with restricted access features
US7861166B1 (en) 1993-12-02 2010-12-28 Discovery Patent Holding, Llc Resizing document pages to fit available hardware screens
US9053640B1 (en) 1993-12-02 2015-06-09 Adrea, LLC Interactive electronic book
US7865567B1 (en) 1993-12-02 2011-01-04 Discovery Patent Holdings, Llc Virtual on-demand electronic book
US5826167A (en) 1994-09-12 1998-10-20 Scientific-Atlanta, Inc. Bi-directional cable television system including a UHF filter
US9009773B1 (en) 1998-06-30 2015-04-14 Cox Communications, Inc. Method and apparatus for providing broadcast data services
US9099097B2 (en) 1999-06-25 2015-08-04 Adrea, LLC Electronic book with voice emulation features
US8548813B2 (en) 1999-06-25 2013-10-01 Adrea, LLC Electronic book with voice emulation features

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee