GB2220807A - Method and system for modulating a carrier signal - Google Patents

Method and system for modulating a carrier signal

Info

Publication number
GB2220807A
GB2220807A GB8906556A GB8906556A GB2220807A GB 2220807 A GB2220807 A GB 2220807A GB 8906556 A GB8906556 A GB 8906556A GB 8906556 A GB8906556 A GB 8906556A GB 2220807 A GB2220807 A GB 2220807A
Authority
GB
United Kingdom
Prior art keywords
carrier signal
modulated carrier
modulating
analog
transition
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.)
Granted
Application number
GB8906556A
Other versions
GB2220807B (en
GB8906556D0 (en
Inventor
Peter R Vokac
Richard C Gerdes
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB8906556D0 publication Critical patent/GB8906556D0/en
Publication of GB2220807A publication Critical patent/GB2220807A/en
Application granted granted Critical
Publication of GB2220807B publication Critical patent/GB2220807B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

A system and method for modulating a carrier signal wherein occurence of the peaks in the modulated carrier signal conveys clocking information and each transition of a modulated carrier signal includes two midrange characteristics, the ratio of which represents data carried by that transition. Either analog or digital circuit techniques can be utilized to produce the modulated carrier signal, and either analog or digital techniques can be used to demodulate the modulated carrier signal in various embodiments of the invention.
GB8906556A 1986-09-22 1986-09-22 Method and system for modulating a carrier signal Expired - Lifetime GB2220807B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1986/001976 WO1988002199A1 (en) 1986-09-22 1986-09-22 Method and system for modulating a carrier signal

Publications (3)

Publication Number Publication Date
GB8906556D0 GB8906556D0 (en) 1989-08-23
GB2220807A true GB2220807A (en) 1990-01-17
GB2220807B GB2220807B (en) 1991-02-06

Family

ID=22195645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8906556A Expired - Lifetime GB2220807B (en) 1986-09-22 1986-09-22 Method and system for modulating a carrier signal

Country Status (4)

Country Link
EP (1) EP0419450A1 (en)
JP (1) JPH02502869A (en)
GB (1) GB2220807B (en)
WO (1) WO1988002199A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR968026A (en) * 1945-08-01 1950-11-17 Sadir Carpentier Method for duration modulation of electrical pulses
US4015211A (en) * 1976-04-09 1977-03-29 Itek Corporation Dual channel pulse width detector having delay and D.C. offset means therein
CH641299A5 (en) * 1978-11-13 1984-02-15 Landis & Gyr Ag Width-pause duration modulator for measurement purposes.
US4333108A (en) * 1980-03-10 1982-06-01 Ampex Corporation Apparatus and method for transmitting a pulse width modulated audio signal on a video signal
US4341964A (en) * 1980-05-27 1982-07-27 Sperry Corporation Precision time duration detector
US4320521A (en) * 1980-07-25 1982-03-16 National Semiconductor Corporation Data bus transceiver
US4438466A (en) * 1982-04-02 1984-03-20 Ampex Corporation D.C. Controlled adjustable ramp signal generator and method

Also Published As

Publication number Publication date
EP0419450A4 (en) 1990-01-24
WO1988002199A1 (en) 1988-03-24
GB2220807B (en) 1991-02-06
JPH02502869A (en) 1990-09-06
EP0419450A1 (en) 1991-04-03
GB8906556D0 (en) 1989-08-23

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Legal Events

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