JPS53105929A - Diversity system - Google Patents

Diversity system

Info

Publication number
JPS53105929A
JPS53105929A JP2031777A JP2031777A JPS53105929A JP S53105929 A JPS53105929 A JP S53105929A JP 2031777 A JP2031777 A JP 2031777A JP 2031777 A JP2031777 A JP 2031777A JP S53105929 A JPS53105929 A JP S53105929A
Authority
JP
Japan
Prior art keywords
diversity system
transimitting
case
switch provided
diversity
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.)
Pending
Application number
JP2031777A
Other languages
Japanese (ja)
Inventor
Fumiyuki Adachi
Sadao Ito
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP2031777A priority Critical patent/JPS53105929A/en
Publication of JPS53105929A publication Critical patent/JPS53105929A/en
Pending 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
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas

Landscapes

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

Abstract

PURPOSE:To obtain a diversity action easily in case a number of wireless channels exist, by changing over the switch provided between plural antennas and at least one of the transimitting or receiving common unit.
JP2031777A 1977-02-28 1977-02-28 Diversity system Pending JPS53105929A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2031777A JPS53105929A (en) 1977-02-28 1977-02-28 Diversity system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2031777A JPS53105929A (en) 1977-02-28 1977-02-28 Diversity system

Publications (1)

Publication Number Publication Date
JPS53105929A true JPS53105929A (en) 1978-09-14

Family

ID=12023744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2031777A Pending JPS53105929A (en) 1977-02-28 1977-02-28 Diversity system

Country Status (1)

Country Link
JP (1) JPS53105929A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0338933A (en) * 1989-07-06 1991-02-20 Oki Electric Ind Co Ltd Space diversity system
WO2002049238A1 (en) * 2000-12-15 2002-06-20 Matsushita Electric Industrial Co., Ltd. Portable radio device having antenna switching function

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5147313A (en) * 1974-10-21 1976-04-22 Nippon Telegraph & Telephone
JPS5168713A (en) * 1974-12-12 1976-06-14 Nippon Telegraph & Telephone

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5147313A (en) * 1974-10-21 1976-04-22 Nippon Telegraph & Telephone
JPS5168713A (en) * 1974-12-12 1976-06-14 Nippon Telegraph & Telephone

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0338933A (en) * 1989-07-06 1991-02-20 Oki Electric Ind Co Ltd Space diversity system
WO2002049238A1 (en) * 2000-12-15 2002-06-20 Matsushita Electric Industrial Co., Ltd. Portable radio device having antenna switching function
EP1343256A1 (en) * 2000-12-15 2003-09-10 Matsushita Electric Industrial Co., Ltd. Portable radio device having antenna switching function
EP1343256A4 (en) * 2000-12-15 2005-02-23 Matsushita Electric Ind Co Ltd Portable radio device having antenna switching function

Similar Documents

Publication Publication Date Title
GB1545697A (en) 2-piperazinyl-6,7-dimethoxyquinazolines
JPS5437618A (en) Receiver
ZA781885B (en) Interphenylene 8-aza-9-dioxothia-11,12-secoprostaglandins
JPS53110312A (en) Single sideeband operation directional radio communication system
NL7800273A (en) COMPACTOR WITH ORBITAL GUIDED, FREELY MOVABLE VACUUM.
JPS5443014A (en) Key code data generator
JPS53105929A (en) Diversity system
AU508677B2 (en) Dipenzo (b, d) Pyrans
NL189840C (en) RADIO RECEIVER.
JPS5375841A (en) Antenna device
JPS53118909A (en) Trunk test system
GB2042549B (en) 25 - hydroxy-cholecalciferol - 26,23 - lactone
JPS5413711A (en) Main-wire connection system of cordless attendant board
JPS5387114A (en) Receiver
JPS5390886A (en) Wiring structure
GB2040932B (en) 1 - substituted - 3,4 - epoxypyrrolidines
JPS546410A (en) Channel selector
JPS533264A (en) Laser pulse transmission/reception system
AU3820978A (en) SUBSTITUTED 1-PIPERAZINO-TRIAZOLO-THIENO-l, 4-DIAZEPINES
JPS5384502A (en) Selective calling unit
JPS5224415A (en) Communication system
JPS52104001A (en) Secret communication system
JPS53126809A (en) Microwave receiving system
JPS53136403A (en) General commanding communication system
GB2006760B (en) Antiarrhythmic n,n'-bis(phenyl-carbamoylmethyl)amidines