GB1223154A - Orthogonal code signal detection system - Google Patents

Orthogonal code signal detection system

Info

Publication number
GB1223154A
GB1223154A GB1616068A GB1616068A GB1223154A GB 1223154 A GB1223154 A GB 1223154A GB 1616068 A GB1616068 A GB 1616068A GB 1616068 A GB1616068 A GB 1616068A GB 1223154 A GB1223154 A GB 1223154A
Authority
GB
United Kingdom
Prior art keywords
signal
april
bit
detection system
signal detection
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
GB1616068A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1223154A publication Critical patent/GB1223154A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L23/00—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00
    • H04L23/02—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00 adapted for orthogonal signalling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

1,223,154. Digital transmission systems. INTERNATIONAL STANDARD ELECTRIC CORP. 4 April, 1968 [10 April, 1967], No. 16160/68. Heading H4P. [Also in Division G4] A digital data receiver includes correlators for detecting each of n orthogonal signals. The correlator outputs are decoded to provide a marking on one of 2n outputs. In the embodiment described, Fig. 2 (not shown), a 3-bit serial signal is received in a time T, the bits being regarded as orthogonal signals. The signal passes to each of three correlators in which it is multiplied with signals 100, 010, 001, respectively. The multipliers feed integrators connected to threshold circuits, and the three threshold circuits thus develop a 3-bit parallel bit signal corresponding to the received signal. The parallel bit signal passes to a gating circuit which energizes one of 2<SP>3</SP> = 8 generators which are sampled successively.
GB1616068A 1967-04-10 1968-04-04 Orthogonal code signal detection system Expired GB1223154A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62977467A 1967-04-10 1967-04-10

Publications (1)

Publication Number Publication Date
GB1223154A true GB1223154A (en) 1971-02-24

Family

ID=24524432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1616068A Expired GB1223154A (en) 1967-04-10 1968-04-04 Orthogonal code signal detection system

Country Status (5)

Country Link
BE (1) BE713447A (en)
DE (1) DE1762101A1 (en)
FR (1) FR1565766A (en)
GB (1) GB1223154A (en)
NL (1) NL6805050A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1333584A1 (en) * 2000-09-14 2003-08-06 NEC Corporation Demultiplexer apparatus and communication apparatus using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1333584A1 (en) * 2000-09-14 2003-08-06 NEC Corporation Demultiplexer apparatus and communication apparatus using the same
EP1333584A4 (en) * 2000-09-14 2004-06-16 Nec Corp Demultiplexer apparatus and communication apparatus using the same
US7408962B2 (en) 2000-09-14 2008-08-05 Nec Corporation Demultiplexer apparatus and communication apparatus using the same

Also Published As

Publication number Publication date
BE713447A (en) 1968-10-10
NL6805050A (en) 1968-10-11
FR1565766A (en) 1969-05-02
DE1762101A1 (en) 1970-03-19

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