ITMI913494A1 - Circuito generatore di frequenza per un radiotelefono mobile - Google Patents
Circuito generatore di frequenza per un radiotelefono mobileInfo
- Publication number
- ITMI913494A1 ITMI913494A1 IT003494A ITMI913494A ITMI913494A1 IT MI913494 A1 ITMI913494 A1 IT MI913494A1 IT 003494 A IT003494 A IT 003494A IT MI913494 A ITMI913494 A IT MI913494A IT MI913494 A1 ITMI913494 A1 IT MI913494A1
- Authority
- IT
- Italy
- Prior art keywords
- mobile radio
- frequency generator
- generator circuit
- radio telephone
- telephone
- Prior art date
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
-
- 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
- H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
- H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910008357A KR940007469B1 (ko) | 1991-05-23 | 1991-05-23 | 이동 무선전화기에 있어서 주파수 소스회로 |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI913494A0 ITMI913494A0 (it) | 1991-12-27 |
ITMI913494A1 true ITMI913494A1 (it) | 1993-06-27 |
IT1252590B IT1252590B (it) | 1995-06-19 |
Family
ID=19314798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI913494A IT1252590B (it) | 1991-05-23 | 1991-12-27 | Circuito generatore di frequenza per un radiotelefono mobile |
Country Status (7)
Country | Link |
---|---|
US (1) | US5321738A (it) |
JP (1) | JPH04361433A (it) |
KR (1) | KR940007469B1 (it) |
DE (1) | DE4143197A1 (it) |
FR (1) | FR2676877A1 (it) |
GB (1) | GB2256103A (it) |
IT (1) | IT1252590B (it) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI930646A (fi) * | 1993-02-15 | 1994-08-16 | Increa Oy | Radiolaite |
DE59408452D1 (de) * | 1993-04-13 | 1999-08-12 | Siemens Ag | Sender-/Empfängeranordnung für höhere Frequenzen |
US5598405A (en) * | 1994-01-25 | 1997-01-28 | Alps Electric Co., Ltd. | Time division multiple access time division duplex type transmitter-receiver |
JP2922414B2 (ja) * | 1994-02-17 | 1999-07-26 | 三菱電機株式会社 | 無線電話移動機 |
US5680441A (en) * | 1994-11-28 | 1997-10-21 | Gallo; Bruce | Adaptor set for converting standard telephone into cordless telephone using replacement handset |
JP3404437B2 (ja) * | 1994-12-27 | 2003-05-06 | アルプス電気株式会社 | 時分割双方向通信装置 |
USD384059S (en) * | 1995-04-11 | 1997-09-23 | E.F. Johnson Company | Handheld two-way radio with hinged cover |
US5577269A (en) * | 1995-04-21 | 1996-11-19 | E. F. Johnson Company | Antenna connector for a portable radio |
JP3045051B2 (ja) * | 1995-08-17 | 2000-05-22 | ソニー株式会社 | ヘッドホン装置 |
USD397109S (en) | 1995-08-25 | 1998-08-18 | E. F. Johnson Company | Handheld two-way radio with hinged cover |
US5892483A (en) * | 1996-03-15 | 1999-04-06 | Ericsson Inc. | Dual antenna arrangement for portable transceiver |
KR980007078A (ko) * | 1996-06-05 | 1998-03-30 | 김광호 | 다중채널을 사용하는 무선통신시스템의 송수신 신호 개선회로 |
US6073027A (en) * | 1996-08-29 | 2000-06-06 | Bellsouth Corporation | Portable radiotelephone with sliding cover and automatic antenna extension |
US5987311A (en) * | 1996-12-27 | 1999-11-16 | Ericsson Inc. | Apparatus for enabling a keypad in response to antenna extension |
US5983119A (en) * | 1997-01-03 | 1999-11-09 | Qualcomm Incorporated | Wireless communication device antenna input system and method of use |
AU6804298A (en) * | 1997-05-29 | 1998-12-03 | Alcatel | A multi-modulation frame for a radio communication system |
US6002943A (en) * | 1997-10-07 | 1999-12-14 | Ericsson, Inc. | Power limiting circuit for radio communication device with a retractable antenna |
US6501429B2 (en) | 1998-02-02 | 2002-12-31 | Seiko Epson Corporation | Portable information processing apparatus |
DE19805963C2 (de) | 1998-02-13 | 2001-02-22 | Siemens Ag | Integrierbare Schaltung zur Frequenzaufbereitung eines im UHF-Bereich arbeitenden Funk-Sende-Empfängers, insbesondere eines Schnurlostelefons |
DE19819038C2 (de) * | 1998-04-28 | 2002-01-03 | Rohde & Schwarz | Frequenzumsetzeranordnung für Hochfrequenzempfänger oder Hochfrequenzgeneratoren |
WO2000025419A1 (de) | 1998-10-22 | 2000-05-04 | Infineon Technologies Ag | Frequenzstabilisierte sende-/empfangsschaltungsanordnung |
US6606083B1 (en) * | 1999-11-29 | 2003-08-12 | Motorola, Inc. | Integrated antenna and input device |
DE19963647B4 (de) * | 1999-12-29 | 2006-09-14 | Harman Becker Automotive Systems (Becker Division) Gmbh | Mischeranordnung |
DE19963645A1 (de) * | 1999-12-29 | 2001-07-19 | Becker Gmbh | Empfänger |
TW595848U (en) * | 2002-05-09 | 2004-06-21 | Quanta Comp Inc | Mobile phone |
US20060113639A1 (en) * | 2002-10-15 | 2006-06-01 | Sehat Sutardja | Integrated circuit including silicon wafer with annealed glass paste |
US7760039B2 (en) * | 2002-10-15 | 2010-07-20 | Marvell World Trade Ltd. | Crystal oscillator emulator |
US7791424B2 (en) * | 2002-10-15 | 2010-09-07 | Marvell World Trade Ltd. | Crystal oscillator emulator |
US7768360B2 (en) * | 2002-10-15 | 2010-08-03 | Marvell World Trade Ltd. | Crystal oscillator emulator |
US20060267194A1 (en) | 2002-10-15 | 2006-11-30 | Sehat Sutardja | Integrated circuit package with air gap |
JP2007515083A (ja) * | 2003-09-05 | 2007-06-07 | フレクストロニクス デザイン フィンランド オサケ ユキチュア | 発振器の操向するための方法、及び発振器 |
DE102004035532B4 (de) * | 2004-07-22 | 2010-06-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Erzeugen eines Referenztaktübertragungssignals und Ableiten eines Referenztakts aus demselben |
US7046205B2 (en) * | 2004-10-19 | 2006-05-16 | Tamez Daniel C | Spring-loaded extendible antenna for a mobile phone |
JP2008124531A (ja) * | 2006-11-08 | 2008-05-29 | Nec Electronics Corp | 半導体装置およびオーディオプロセッサチップ |
CN103700958A (zh) * | 2013-12-27 | 2014-04-02 | 四川福润得数码科技有限责任公司 | 射频模组及其转接头、射频模组中转接头装配方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54139316A (en) * | 1978-04-20 | 1979-10-29 | Matsushita Electric Ind Co Ltd | Am ssb transmitter/receiver |
US4194151A (en) * | 1978-06-29 | 1980-03-18 | General Electric Company | Multifrequency generator |
DE3106058A1 (de) * | 1981-02-19 | 1982-09-02 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren zur frequenzaufbereitung fuer funksende- und -empfangsgeraete |
US4476575A (en) * | 1982-12-13 | 1984-10-09 | General Electric Company | Radio transceiver |
DE3631068A1 (de) * | 1986-09-12 | 1988-03-24 | Hagenuk Telecom Gmbh | Drahtloses telefonsystem |
JPS63306720A (ja) * | 1987-06-09 | 1988-12-14 | Oki Electric Ind Co Ltd | 無線機 |
JPH02261224A (ja) * | 1989-03-31 | 1990-10-24 | Mitsubishi Electric Corp | 携帯無線機 |
FI81933C (fi) * | 1989-05-18 | 1990-12-10 | Nokia Mobira Oy | Foerfarande foer alstring av frekvenser i en digital radiotelefon. |
US5008900A (en) * | 1989-08-14 | 1991-04-16 | International Mobile Machines Corporation | Subscriber unit for wireless digital subscriber communication system |
FI85205C (fi) * | 1990-04-12 | 1992-03-10 | Nokia Mobile Phones Ltd | Antennomkopplare. |
-
1991
- 1991-05-23 KR KR1019910008357A patent/KR940007469B1/ko not_active IP Right Cessation
- 1991-12-11 US US07/804,706 patent/US5321738A/en not_active Expired - Lifetime
- 1991-12-11 FR FR9115341A patent/FR2676877A1/fr active Pending
- 1991-12-25 JP JP3342579A patent/JPH04361433A/ja active Pending
- 1991-12-27 IT ITMI913494A patent/IT1252590B/it active IP Right Grant
- 1991-12-30 DE DE4143197A patent/DE4143197A1/de not_active Ceased
- 1991-12-31 GB GB9127518A patent/GB2256103A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US5321738A (en) | 1994-06-14 |
GB9127518D0 (en) | 1992-02-19 |
ITMI913494A0 (it) | 1991-12-27 |
DE4143197A1 (de) | 1992-11-26 |
JPH04361433A (ja) | 1992-12-15 |
FR2676877A1 (fr) | 1992-11-27 |
GB2256103A (en) | 1992-11-25 |
IT1252590B (it) | 1995-06-19 |
KR920022704A (ko) | 1992-12-19 |
KR940007469B1 (ko) | 1994-08-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |