BR9705760A - Processo para selecionar uma freqüência intermediária de transmissão em um telefone celular dispositivo para gerar freqüências de oscilação locais e telefone celular de banda dupla - Google Patents

Processo para selecionar uma freqüência intermediária de transmissão em um telefone celular dispositivo para gerar freqüências de oscilação locais e telefone celular de banda dupla

Info

Publication number
BR9705760A
BR9705760A BR9705760A BR9705760A BR9705760A BR 9705760 A BR9705760 A BR 9705760A BR 9705760 A BR9705760 A BR 9705760A BR 9705760 A BR9705760 A BR 9705760A BR 9705760 A BR9705760 A BR 9705760A
Authority
BR
Brazil
Prior art keywords
cell phone
selecting
transmission frequency
local oscillation
intermediate transmission
Prior art date
Application number
BR9705760A
Other languages
English (en)
Inventor
Guda Srinivas
Original Assignee
Samsung Electronics 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of BR9705760A publication Critical patent/BR9705760A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/0057—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
    • 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
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • 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
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
BR9705760A 1996-11-28 1997-11-20 Processo para selecionar uma freqüência intermediária de transmissão em um telefone celular dispositivo para gerar freqüências de oscilação locais e telefone celular de banda dupla BR9705760A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960058951A KR100224102B1 (ko) 1996-11-28 1996-11-28 이중 대역 셀룰러 전화에 이용되는 중간주파수 선택장치 및 방법

Publications (1)

Publication Number Publication Date
BR9705760A true BR9705760A (pt) 1999-02-23

Family

ID=19484245

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9705760A BR9705760A (pt) 1996-11-28 1997-11-20 Processo para selecionar uma freqüência intermediária de transmissão em um telefone celular dispositivo para gerar freqüências de oscilação locais e telefone celular de banda dupla

Country Status (6)

Country Link
US (1) US6075996A (pt)
KR (1) KR100224102B1 (pt)
CN (1) CN1089987C (pt)
BR (1) BR9705760A (pt)
GB (1) GB2320150B (pt)
RU (1) RU2161373C2 (pt)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6308048B1 (en) * 1997-11-19 2001-10-23 Ericsson Inc. Simplified reference frequency distribution in a mobile phone
US6134452A (en) * 1998-11-23 2000-10-17 Motorola, Inc. Multiple band mixer with common local oscillator
FI112741B (fi) 1998-11-26 2003-12-31 Nokia Corp Menetelmä ja järjestely RF-signaalien lähettämiseksi ja vastaanottamiseksi tiedonsiirtojärjestelmien erilaisissa radiorajapinnoissa
DK1006669T3 (da) * 1998-11-30 2006-11-27 Bosch Gmbh Robert Omstilleligt bredbåndsmodtagerindgangstrin for en flerbåndsmodtager
US6272329B1 (en) * 1998-12-09 2001-08-07 Nortel Networks Limited Bidirectional frequency translator and full duplex transceiver system employing same
JP3603995B2 (ja) * 1999-03-31 2004-12-22 シャープ株式会社 高周波無線通信装置
JP4110668B2 (ja) * 1999-05-13 2008-07-02 松下電器産業株式会社 信号発生器
US6381471B1 (en) * 1999-06-30 2002-04-30 Vladimir A. Dvorkin Dual band radio telephone with dedicated receive and transmit antennas
KR100645924B1 (ko) * 1999-07-20 2006-11-13 에스케이 텔레콤주식회사 이동 통신 단말기의 복수 대역 고주파 송·수신 장치
FR2796799B1 (fr) * 1999-07-22 2001-10-05 Cit Alcatel Procede et dispositif de modulation dans un emetteur
AU2001249730A1 (en) * 2000-03-28 2001-10-08 California Institute Of Technology Concurrent multi-band low noise amplifier architecture
EP1158686B1 (en) * 2000-05-23 2007-07-04 Sony Deutschland GmbH Multiband radio system and method for operating a multiband radio system
JP3626399B2 (ja) * 2000-08-17 2005-03-09 株式会社東芝 周波数シンセサイザ及びこれを用いたマルチバンド無線機
WO2002075942A2 (en) * 2001-03-14 2002-09-26 California Institute Of Technology Concurrent dual-band receiver architecture
GB2383700A (en) * 2001-09-27 2003-07-02 Inquam Frequency converter for CDMA systems
KR100678089B1 (ko) * 2001-10-25 2007-02-01 삼성전자주식회사 이중 대역 수신기의 고주파신호 수신회로
US8885688B2 (en) 2002-10-01 2014-11-11 Qualcomm Incorporated Control message management in physical layer repeater
JP4325490B2 (ja) * 2004-06-10 2009-09-02 株式会社デンソー ヘテロダイン受信機
WO2006081405A2 (en) 2005-01-28 2006-08-03 Widefi, Inc. Physical layer repeater configuration for increasing mino performance
US7315730B2 (en) * 2005-06-14 2008-01-01 Motorola, Inc. Architecture for a receiver front end having dual output low noise amplifier driving separate pre-selectors coupled to a transformer for single ended output
JP4440831B2 (ja) 2005-06-14 2010-03-24 株式会社エヌ・ティ・ティ・ドコモ 基地局装置、送信方法及び通信システム
US7519353B2 (en) * 2005-07-26 2009-04-14 Qwest Communications International Inc. Multi-MVNO wireless service
JP2007295457A (ja) * 2006-04-27 2007-11-08 Matsushita Electric Ind Co Ltd 受信装置とこれを用いた電子機器
JP4875164B2 (ja) 2006-10-26 2012-02-15 クゥアルコム・インコーポレイテッド ビームフォーマを利用する多入力多出力のための中継器技術
US20080101297A1 (en) * 2006-10-27 2008-05-01 Istvan Szini DVB-H-GPS coexistence on a single antenna solution
US9143085B2 (en) * 2012-03-01 2015-09-22 Qualcomm Incorporated Frequency synthesizer architecture in a time-division duplex mode for a wireless device
US9325042B2 (en) * 2012-09-12 2016-04-26 Sony Corporation RF front end module and mobile wireless device
US9496947B1 (en) * 2015-07-22 2016-11-15 Hughes Network Systems L.L.C. Switchable linear and saturated very small aperture terminal (VSAT) modem
EA038870B1 (ru) * 2018-11-12 2021-10-29 Открытое акционерное общество "Межгосударственная Корпорация Развития" Передатчик
EA037933B1 (ru) * 2018-11-12 2021-06-09 Открытое акционерное общество "Межгосударственная Корпорация Развития" Передатчик
EP3672177A1 (en) * 2018-12-20 2020-06-24 GN Hearing A/S Hearing device having dual band radio using image frequency

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330687A (en) * 1979-03-14 1982-05-18 Teltone Corporation Audio and full duplex digital data carrier system
JPS6399662A (ja) * 1986-10-16 1988-04-30 Oki Electric Ind Co Ltd 自動車電話装置の回線切替制御方式
US4972455A (en) * 1989-06-23 1990-11-20 Motorola, Inc. Dual-bandwidth cellular telephone
GB2254971B (en) * 1991-03-07 1994-12-21 Ericsson Telefon Ab L M Mobile radio communications stations
FR2707063B1 (pt) * 1993-06-25 1995-09-22 Alcatel Mobile Comm France
KR950022530A (ko) * 1993-12-17 1995-07-28 김주용 무선 전화기 겸용 핸드폰
US5758266A (en) * 1994-09-30 1998-05-26 Qualcomm Incorporated Multiple frequency communication device
FI100286B (fi) * 1996-04-01 1997-10-31 Nokia Mobile Phones Ltd Lähetin/vastaanotin RF-signaalin lähettämiseksi ja vastaanottamiseksi kahdella taajuusalueella
US5884149A (en) * 1997-02-13 1999-03-16 Nokia Mobile Phones Limited Mobile station having dual band RF detector and gain control

Also Published As

Publication number Publication date
CN1089987C (zh) 2002-08-28
CN1186401A (zh) 1998-07-01
US6075996A (en) 2000-06-13
RU2161373C2 (ru) 2000-12-27
KR100224102B1 (ko) 1999-10-15
KR19980039835A (ko) 1998-08-17
GB2320150A (en) 1998-06-10
GB9723817D0 (en) 1998-01-07
GB2320150B (en) 1999-02-10

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFERIDO COM BASE NO ART. 8O COMBINADO COM O ART. 13 DA LPI.

B15K Others concerning applications: alteration of classification

Ipc: H04B 1/00 (2006.01), H04B 1/403 (2015.0