GB1373644A - Diversity communication receiving equipment - Google Patents

Diversity communication receiving equipment

Info

Publication number
GB1373644A
GB1373644A GB1091271A GB1091271A GB1373644A GB 1373644 A GB1373644 A GB 1373644A GB 1091271 A GB1091271 A GB 1091271A GB 1091271 A GB1091271 A GB 1091271A GB 1373644 A GB1373644 A GB 1373644A
Authority
GB
United Kingdom
Prior art keywords
filters
control
signals
amplifiers
signal spectrum
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
GB1091271A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB1091271A priority Critical patent/GB1373644A/en
Publication of GB1373644A publication Critical patent/GB1373644A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)

Abstract

1373644 Diversity reception systems MARCONI CO Ltd 23 Feb 1972 [23 April 1971] 10912/71 Heading H4L In a diversity reception system in which incoming signals on paths A and B are combined at 2 under the control of voltages on leads 4, 4a, narrow bandpass filters 5, 5a, select noise signals above but adjacent to the upper frequency limit of the base band signal spectrum from inputs A, B respectively. The outputs of filters 5, 5a are amplified at 6, 6a detected at 8, 8a inverted in D.C. amplifiers 9, 9a and supplied as gain control signals to the combining circuit 2. These control signals also via filters 10, 10a, control the gain of amplifiers 6, 6a, respectively. Alternatively, the fillers 5, 5a may be wideband filters having a passband above and considerably spaced from the baseband signal spectrum.
GB1091271A 1972-02-23 1972-02-23 Diversity communication receiving equipment Expired GB1373644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1091271A GB1373644A (en) 1972-02-23 1972-02-23 Diversity communication receiving equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1091271A GB1373644A (en) 1972-02-23 1972-02-23 Diversity communication receiving equipment

Publications (1)

Publication Number Publication Date
GB1373644A true GB1373644A (en) 1974-11-13

Family

ID=9976585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1091271A Expired GB1373644A (en) 1972-02-23 1972-02-23 Diversity communication receiving equipment

Country Status (1)

Country Link
GB (1) GB1373644A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257605A (en) * 1991-07-12 1993-01-13 Paul Victor Brennan Diversity antenna system
EP0967738A2 (en) * 1998-06-23 1999-12-29 Ford Motor Company Proportional diversity radio receiver system
US6141536A (en) * 1998-06-23 2000-10-31 Visteon Global Technologies, Inc. Diversity radio system with RDS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257605A (en) * 1991-07-12 1993-01-13 Paul Victor Brennan Diversity antenna system
EP0967738A2 (en) * 1998-06-23 1999-12-29 Ford Motor Company Proportional diversity radio receiver system
US6141536A (en) * 1998-06-23 2000-10-31 Visteon Global Technologies, Inc. Diversity radio system with RDS
US6236844B1 (en) 1998-06-23 2001-05-22 Visteon Global Technologies, Inc. Proportional diversity radio receiver system
EP0967738A3 (en) * 1998-06-23 2003-07-23 Ford Motor Company Proportional diversity radio receiver system

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee