HK1016765A1 - Dual-band data communication device - Google Patents
Dual-band data communication deviceInfo
- Publication number
- HK1016765A1 HK1016765A1 HK99101673A HK99101673A HK1016765A1 HK 1016765 A1 HK1016765 A1 HK 1016765A1 HK 99101673 A HK99101673 A HK 99101673A HK 99101673 A HK99101673 A HK 99101673A HK 1016765 A1 HK1016765 A1 HK 1016765A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- dual
- communication device
- data communication
- band data
- band
- 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
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0028—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage
- H04B1/0032—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage with analogue quadrature frequency conversion to and from the baseband
-
- 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
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
-
- 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
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Transceivers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9141141A JPH10322407A (ja) | 1997-05-16 | 1997-05-16 | デュアルバンドデータ通信装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1016765A1 true HK1016765A1 (en) | 1999-11-05 |
Family
ID=15285131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK99101673A HK1016765A1 (en) | 1997-05-16 | 1999-04-16 | Dual-band data communication device |
Country Status (6)
Country | Link |
---|---|
US (1) | US6310863B1 (zh) |
EP (1) | EP0878916B1 (zh) |
JP (1) | JPH10322407A (zh) |
CN (1) | CN1110149C (zh) |
DE (1) | DE69831112T2 (zh) |
HK (1) | HK1016765A1 (zh) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999031851A1 (fr) * | 1997-12-17 | 1999-06-24 | Kabushiki Kaisha Kenwood | Recepteur |
JP3326133B2 (ja) | 1999-04-02 | 2002-09-17 | 松下電器産業株式会社 | 無線装置及び方法 |
US6992990B2 (en) * | 2000-07-17 | 2006-01-31 | Sony Corporation | Radio communication apparatus |
JP2002208869A (ja) * | 2001-01-09 | 2002-07-26 | Sony Corp | マルチバンド無線信号送受信装置 |
US20030189974A1 (en) * | 2001-05-03 | 2003-10-09 | Chester Ferry | Wireless full-duplex transmission system |
KR100433631B1 (ko) * | 2002-04-03 | 2004-05-31 | 한국전자통신연구원 | 알에프를 공통으로 하는 이중 변복조 고주파 송수신 장치 |
EP1507334A1 (fr) | 2003-08-12 | 2005-02-16 | STMicroelectronics S.A. | Composant électronique permettant notamment le décodage de signaux modulés par une modulation numérique en quadrature sur un grand nombre de porteuses orthogonales |
US7266352B2 (en) * | 2004-05-28 | 2007-09-04 | Wionics Research | Multiple band RF transmitters and receivers having independently variable RF and IF local oscillators and independent high-side and low-side RF local oscillators |
CN101103538B (zh) * | 2005-01-14 | 2014-06-04 | 日本电气株式会社 | 通信设备、多频带接收机及接收机 |
US7787843B2 (en) * | 2005-03-29 | 2010-08-31 | Broadcom Corporation | Multiple band direct conversion radio frequency transceiver integrated circuit |
US8644238B2 (en) * | 2009-04-27 | 2014-02-04 | Nokia Siemens Networks Oy | Demodulation reference signals in a communication system |
US8750174B2 (en) * | 2012-03-30 | 2014-06-10 | Broadcom Corporation | Dual carrier separation |
CN116545488A (zh) * | 2017-03-28 | 2023-08-04 | 高通股份有限公司 | 基于距离的传输参数调节 |
US10305611B1 (en) | 2018-03-28 | 2019-05-28 | Qualcomm Incorporated | Proximity detection using a hybrid transceiver |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0654923B2 (ja) * | 1985-04-09 | 1994-07-20 | 日本電気株式会社 | 変復調装置の動作制御方式 |
JPH05160863A (ja) * | 1991-12-05 | 1993-06-25 | Sony Corp | Msk変調信号の復調装置 |
JP2840496B2 (ja) * | 1992-02-26 | 1998-12-24 | 三洋電機株式会社 | デュアルバンド無線通信装置 |
US5392300A (en) * | 1992-11-10 | 1995-02-21 | Motorola, Inc. | Dual mode radio communication unit |
JPH06296186A (ja) * | 1993-02-12 | 1994-10-21 | Matsushita Electric Ind Co Ltd | Psk復調装置及びqpsk復調装置 |
JP3503964B2 (ja) * | 1993-09-21 | 2004-03-08 | 株式会社東芝 | 無線機 |
JP2794680B2 (ja) * | 1994-02-07 | 1998-09-10 | 日本無線株式会社 | スーパーヘテロダイン受信方式 |
US5521938A (en) * | 1994-07-01 | 1996-05-28 | Motorola, Inc. | Apparatus for performing frequency conversion in a communication system |
KR0143023B1 (ko) * | 1994-08-03 | 1998-08-01 | 김광호 | 디지탈 무선전화기의 송수신 신호처리 회로 |
JPH08223073A (ja) * | 1995-02-14 | 1996-08-30 | Fujitsu Ltd | デュアルバンド無線通信装置 |
DE69630546T2 (de) * | 1995-05-16 | 2004-08-05 | Matsushita Electric Industrial Co., Ltd., Kadoma | Spannungsgesteuerter Oszillator mit steuerbarem Frequenzband |
US5974305A (en) * | 1997-05-15 | 1999-10-26 | Nokia Mobile Phones Limited | Dual band architectures for mobile stations |
-
1997
- 1997-05-16 JP JP9141141A patent/JPH10322407A/ja active Pending
-
1998
- 1998-04-27 US US09/067,115 patent/US6310863B1/en not_active Expired - Fee Related
- 1998-05-15 DE DE69831112T patent/DE69831112T2/de not_active Expired - Fee Related
- 1998-05-15 CN CN98108457A patent/CN1110149C/zh not_active Expired - Fee Related
- 1998-05-15 EP EP98108895A patent/EP0878916B1/en not_active Expired - Lifetime
-
1999
- 1999-04-16 HK HK99101673A patent/HK1016765A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE69831112T2 (de) | 2006-04-13 |
JPH10322407A (ja) | 1998-12-04 |
CN1110149C (zh) | 2003-05-28 |
CN1201304A (zh) | 1998-12-09 |
EP0878916A3 (en) | 2003-10-22 |
EP0878916B1 (en) | 2005-08-10 |
DE69831112D1 (de) | 2005-09-15 |
EP0878916A2 (en) | 1998-11-18 |
US6310863B1 (en) | 2001-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20100515 |