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ES8801759A1 - Transmitting digital information on telephone system - Google Patents

Transmitting digital information on telephone system

Info

Publication number
ES8801759A1
ES8801759A1 ES554649A ES554649A ES8801759A1 ES 8801759 A1 ES8801759 A1 ES 8801759A1 ES 554649 A ES554649 A ES 554649A ES 554649 A ES554649 A ES 554649A ES 8801759 A1 ES8801759 A1 ES 8801759A1
Authority
ES
Spain
Prior art keywords
burst
bit
transmitted
channel
bursts
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
ES554649A
Other languages
Spanish (es)
Other versions
ES554649A0 (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.)
Pacific Bell Corp
Original Assignee
Pacific Bell 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
Priority claimed from US06/838,579 external-priority patent/US4750169A/en
Application filed by Pacific Bell Corp filed Critical Pacific Bell Corp
Publication of ES8801759A1 publication Critical patent/ES8801759A1/en
Publication of ES554649A0 publication Critical patent/ES554649A0/en
Expired legal-status Critical Current

Links

Landscapes

  • Time-Division Multiplex Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

Information is transmitted between a subscriber location (12) and a central office (14), when each location is connected to the office by a single loop (16). Bursts of time compressed multiplexed, full duplex digital signals are synchronously transmitted at an information bit rate of between about forty and eighty kilobits per second and burst cycle of between about 0.8 and 4.0 milliseconds. Each burst contains bits defining at least one voice channel, at least one data channel and at least one signalling channel. The burst also has at least one synchronising bit at the front and back. Preferably the burst contains two thirty two bit voice channels, one eight bit medium speed data channel and four onebit low speed data channels. The total length of the burst is eight eight bits. The departure of the bursts from each subscriber location is timed so that those transmitted from the locations for each duplex arrive at the central office simultaneously.
ES554649A 1986-03-11 1986-05-05 Transmitting digital information on telephone system Expired ES8801759A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/838,579 US4750169A (en) 1985-03-12 1986-03-11 Telephone system and method for transmitting digital information

Publications (2)

Publication Number Publication Date
ES8801759A1 true ES8801759A1 (en) 1988-02-16
ES554649A0 ES554649A0 (en) 1988-02-16

Family

ID=25277478

Family Applications (1)

Application Number Title Priority Date Filing Date
ES554649A Expired ES8801759A1 (en) 1986-03-11 1986-05-05 Transmitting digital information on telephone system

Country Status (2)

Country Link
ES (1) ES8801759A1 (en)
IL (1) IL78564A (en)

Also Published As

Publication number Publication date
IL78564A0 (en) 1986-08-31
IL78564A (en) 1990-11-05
ES554649A0 (en) 1988-02-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19960603