TW200718040A - Frequency-modulated transmission apparatus - Google Patents

Frequency-modulated transmission apparatus

Info

Publication number
TW200718040A
TW200718040A TW095130396A TW95130396A TW200718040A TW 200718040 A TW200718040 A TW 200718040A TW 095130396 A TW095130396 A TW 095130396A TW 95130396 A TW95130396 A TW 95130396A TW 200718040 A TW200718040 A TW 200718040A
Authority
TW
Taiwan
Prior art keywords
signal
frequency
transmission apparatus
circuit
outputting
Prior art date
Application number
TW095130396A
Other languages
English (en)
Other versions
TWI316796B (zh
Inventor
Masaki Kinoshita
Nobuo Takahashi
Satoshi Terada
Original Assignee
Sanyo Electric Co
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 Sanyo Electric Co filed Critical Sanyo Electric Co
Publication of TW200718040A publication Critical patent/TW200718040A/zh
Application granted granted Critical
Publication of TWI316796B publication Critical patent/TWI316796B/zh

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
    • H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Stereo-Broadcasting Methods (AREA)
TW095130396A 2005-10-05 2006-08-18 Frequency-modulated transmission apparatus TW200718040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005291933A JP2007104356A (ja) 2005-10-05 2005-10-05 周波数変調型送信装置

Publications (2)

Publication Number Publication Date
TW200718040A true TW200718040A (en) 2007-05-01
TWI316796B TWI316796B (zh) 2009-11-01

Family

ID=37901921

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095130396A TW200718040A (en) 2005-10-05 2006-08-18 Frequency-modulated transmission apparatus

Country Status (5)

Country Link
US (1) US8009835B2 (zh)
JP (1) JP2007104356A (zh)
KR (1) KR100743811B1 (zh)
CN (1) CN1946251A (zh)
TW (1) TW200718040A (zh)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5459004A (en) * 1977-10-20 1979-05-12 Nippon Gakki Seizo Kk Fm stereo modulating system
KR930006784Y1 (ko) * 1988-06-22 1993-10-06 주식회사 금성사 비디오 테이프 레코더의 변속재생시 노이즈바 조정회로
US5001757A (en) * 1989-12-22 1991-03-19 Sprague Electric Company FM stereo tone detector
JPH06338810A (ja) * 1993-05-26 1994-12-06 Pioneer Electron Corp Ｆｍモジュレータ
US5483600A (en) * 1994-02-14 1996-01-09 Aphex Systems, Ltd. Wave dependent compressor
US5907261A (en) 1997-09-05 1999-05-25 Ericsson Inc. Method and apparatus for controlling signal amplitude level
JP3235580B2 (ja) * 1999-01-08 2001-12-04 日本電気株式会社 高効率増幅器
US6674999B2 (en) * 2001-03-16 2004-01-06 Skyworks Solutions, Inc Dynamically varying linearity system for an RF front-end of a communication device

Also Published As

Publication number Publication date
CN1946251A (zh) 2007-04-11
JP2007104356A (ja) 2007-04-19
TWI316796B (zh) 2009-11-01
KR100743811B1 (ko) 2007-07-30
US8009835B2 (en) 2011-08-30
US20070076815A1 (en) 2007-04-05
KR20070038421A (ko) 2007-04-10

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees