JPS6231865B2 - - Google Patents

Info

Publication number
JPS6231865B2
JPS6231865B2 JP54165512A JP16551279A JPS6231865B2 JP S6231865 B2 JPS6231865 B2 JP S6231865B2 JP 54165512 A JP54165512 A JP 54165512A JP 16551279 A JP16551279 A JP 16551279A JP S6231865 B2 JPS6231865 B2 JP S6231865B2
Authority
JP
Japan
Prior art keywords
frequency
oscillator
output
signal
voltage controlled
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
JP54165512A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5689136A (en
Inventor
Takeo Suzuki
Toyotaro Sawa
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP16551279A priority Critical patent/JPS5689136A/ja
Publication of JPS5689136A publication Critical patent/JPS5689136A/ja
Publication of JPS6231865B2 publication Critical patent/JPS6231865B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transceivers (AREA)
JP16551279A 1979-12-21 1979-12-21 Transmitter-receiver of press-to-talk system Granted JPS5689136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16551279A JPS5689136A (en) 1979-12-21 1979-12-21 Transmitter-receiver of press-to-talk system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16551279A JPS5689136A (en) 1979-12-21 1979-12-21 Transmitter-receiver of press-to-talk system

Publications (2)

Publication Number Publication Date
JPS5689136A JPS5689136A (en) 1981-07-20
JPS6231865B2 true JPS6231865B2 (enEXAMPLES) 1987-07-10

Family

ID=15813795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16551279A Granted JPS5689136A (en) 1979-12-21 1979-12-21 Transmitter-receiver of press-to-talk system

Country Status (1)

Country Link
JP (1) JPS5689136A (enEXAMPLES)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59408452D1 (de) * 1993-04-13 1999-08-12 Siemens Ag Sender-/Empfängeranordnung für höhere Frequenzen
JP4741952B2 (ja) * 2006-02-02 2011-08-10 Ｉｄｅｃ株式会社 操作スイッチ
US20100093279A1 (en) * 2008-10-14 2010-04-15 Qualcomm Incorporated Electronic devices for communication utilizing energy detection and/or frequency synthesis
JP5514501B2 (ja) * 2009-10-08 2014-06-04 日本無線株式会社 インピーダンス整合回路

Also Published As

Publication number Publication date
JPS5689136A (en) 1981-07-20

Similar Documents

Publication Publication Date Title
US6766178B1 (en) RF architecture for cellular multi-band telephones
US4027242A (en) Double superheterodyne multichannel receiver with a phase-locked loop frequency synthesizer
JP3310057B2 (ja) ディジタル移動電話機の高周波回路構成
US5983081A (en) Method for generating frequencies in a direct conversion transceiver of a dual band radio communication system, a direct conversion transceiver of a dual band radio communication system and the use of this method and apparatus in a mobile station
US5852784A (en) Multiband mobile unit communication apparatus
US6985701B2 (en) Frequency synthesizer and multi-band radio apparatus using said frequency synthesizer
US4520474A (en) Duplex communication transceiver with modulation cancellation
JPH09261106A (ja) 複数帯域移動無線機
US4211975A (en) Local signal generation arrangement
KR0143023B1 (ko) 디지탈 무선전화기의 송수신 신호처리 회로
JPH07221667A (ja) デジタル無線電話機において異なる周波数の信号を発生する方法
JPH04240924A (ja) 時分割複信無線送受信装置
JPH0123012B2 (enEXAMPLES)
JPS6217904B2 (enEXAMPLES)
JPH06216802A (ja) 送受信装置
JPS6231865B2 (enEXAMPLES)
JPH11239074A (ja) 同調型予選択フィルター
JP2889753B2 (ja) デュアルバンド無線通信装置
JPS5832810B2 (ja) 位相同期形ディジタル周波数シンセサイザ
JP3282682B2 (ja) 移動電話機
JP3825317B2 (ja) フェーズロックループおよび直交位相変調器の両方を用いたｆｍ変調器
WO1985002734A1 (en) Duplex communication transceiver with modulation cancellation
JPH06284037A (ja) ディジタル移動体通信装置
JP3284666B2 (ja) 時分割多重デジタル無線通信装置
JPH07235893A (ja) 無線電話用の中間周波数信号の形成方法とその装置