JP2001506464A - 歪みを低減するための改良型チャンネル間隔 - Google Patents
歪みを低減するための改良型チャンネル間隔Info
- Publication number
- JP2001506464A JP2001506464A JP54027098A JP54027098A JP2001506464A JP 2001506464 A JP2001506464 A JP 2001506464A JP 54027098 A JP54027098 A JP 54027098A JP 54027098 A JP54027098 A JP 54027098A JP 2001506464 A JP2001506464 A JP 2001506464A
- Authority
- JP
- Japan
- Prior art keywords
- channels
- channel
- frequency
- adjacent
- carrier frequency
- 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.)
- Ceased
Links
- 238000001228 spectrum Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000003993 interaction Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000411 transmission spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/12—Arrangements for reducing cross-talk between channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Transmitters (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/819,896 US5983078A (en) | 1997-03-18 | 1997-03-18 | Channel spacing for distortion reduction |
| US08/819,896 | 1997-03-18 | ||
| PCT/IB1998/000213 WO1998042092A2 (en) | 1997-03-18 | 1998-02-19 | Improved channel spacing for distortion reduction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001506464A true JP2001506464A (ja) | 2001-05-15 |
| JP2001506464A5 JP2001506464A5 (enExample) | 2005-10-06 |
Family
ID=25229374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54027098A Ceased JP2001506464A (ja) | 1997-03-18 | 1998-02-19 | 歪みを低減するための改良型チャンネル間隔 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5983078A (enExample) |
| EP (1) | EP0925660A2 (enExample) |
| JP (1) | JP2001506464A (enExample) |
| KR (1) | KR20000011146A (enExample) |
| CN (1) | CN1149831C (enExample) |
| WO (1) | WO1998042092A2 (enExample) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6771590B1 (en) * | 1996-08-22 | 2004-08-03 | Tellabs Operations, Inc. | Communication system clock synchronization techniques |
| US6118758A (en) | 1996-08-22 | 2000-09-12 | Tellabs Operations, Inc. | Multi-point OFDM/DMT digital communications system including remote service unit with improved transmitter architecture |
| ES2389626T3 (es) | 1998-04-03 | 2012-10-29 | Tellabs Operations, Inc. | Filtro para acortamiento de respuesta al impulso, con restricciones espectrales adicionales, para transmisión de múltiples portadoras |
| US7440498B2 (en) | 2002-12-17 | 2008-10-21 | Tellabs Operations, Inc. | Time domain equalization for discrete multi-tone systems |
| US6795424B1 (en) | 1998-06-30 | 2004-09-21 | Tellabs Operations, Inc. | Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems |
| US6397051B1 (en) * | 1998-12-21 | 2002-05-28 | At&T Corporation | Dual image-reject mixer receiver for multiple channel reception and processing |
| US7343015B2 (en) * | 1999-11-16 | 2008-03-11 | Radio Shack Corporation | Method and apparatus for high fidelity wireless stereophonic transmission utilizing dual frequency carriers |
| US6658115B1 (en) * | 1999-11-16 | 2003-12-02 | Radioshack, Corp. | Method and apparatus for high fidelity wireless stereophonic transmission |
| US8463255B2 (en) * | 1999-12-20 | 2013-06-11 | Ipr Licensing, Inc. | Method and apparatus for a spectrally compliant cellular communication system |
| US6529868B1 (en) | 2000-03-28 | 2003-03-04 | Tellabs Operations, Inc. | Communication system noise cancellation power signal calculation techniques |
| US7003275B1 (en) * | 2000-05-18 | 2006-02-21 | Broadband Innovations, Inc. | Agile frequency converter for multichannel systems using IF-RF level exhange and tunable filters |
| DE10353498B4 (de) * | 2003-11-11 | 2011-12-08 | Siemens Ag | Optimierte Subkanalzuordnung innerhalb eines Frequenzübertragungsbands |
| DE602004020988D1 (de) * | 2004-09-15 | 2009-06-18 | St Microelectronics Belgium Nv | VLIF-Sender für eine "Bluetooth Wireless Technology" Vorrichtung |
| JP4804735B2 (ja) * | 2004-09-30 | 2011-11-02 | 富士通株式会社 | 光伝送システム及び光伝送方法 |
| KR101798046B1 (ko) * | 2011-07-28 | 2017-11-15 | 엘지전자 주식회사 | 이동 단말기 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3778716A (en) * | 1966-01-28 | 1973-12-11 | Hughes Aircraft Co | Coherent catv transmission system |
| US4287598A (en) * | 1979-12-17 | 1981-09-01 | Bell Telephone Laboratories, Incorporated | Cooperating arrangement for diversity stations |
| US4475242A (en) * | 1982-11-10 | 1984-10-02 | Marc Rafal | Microwave communications system |
| US4747160A (en) * | 1987-03-13 | 1988-05-24 | Suite 12 Group | Low power multi-function cellular television system |
| GB8707533D0 (en) * | 1987-03-30 | 1987-05-07 | Indep Broadcasting Authority | Pre-emphasis for(mac)television signal |
| DE3850934T2 (de) * | 1987-11-10 | 1994-12-01 | Nippon Electric Co | Kanalumschaltungseinrichtung. |
| DE3810628C1 (enExample) * | 1988-03-29 | 1989-04-06 | Standard Elektrik Lorenz Ag, 7000 Stuttgart, De | |
| US5204686A (en) * | 1988-04-06 | 1993-04-20 | Trw Inc. | RF Feed array |
| US5274836A (en) * | 1989-08-08 | 1993-12-28 | Gde Systems, Inc. | Multiple encoded carrier data link |
| US5287543A (en) * | 1991-10-07 | 1994-02-15 | General Electric Co. | Multichannel communication system with an amplifier in each channel |
| JPH0746648A (ja) * | 1993-08-02 | 1995-02-14 | Fujitsu Ltd | 移動体通信システム |
| US5594937A (en) * | 1994-09-02 | 1997-01-14 | Ghz Equipment Company | System for the transmission and reception of directional radio signals utilizing a gigahertz implosion concept |
| JP2910825B2 (ja) * | 1994-10-20 | 1999-06-23 | 日本電気株式会社 | デジタル画像受信器 |
| US5579341A (en) * | 1994-12-29 | 1996-11-26 | Motorola, Inc. | Multi-channel digital transceiver and method |
| US5666646A (en) * | 1995-04-10 | 1997-09-09 | Comtech | Radio frequency (RF) converter system with distributed protection switching and method therefor |
| US5535191A (en) * | 1995-06-28 | 1996-07-09 | Seiko Communications Systems, Inc. | Method and apparatus for switching between redundant hardware in a wireless data communication system |
| JP2802255B2 (ja) * | 1995-09-06 | 1998-09-24 | 株式会社次世代デジタルテレビジョン放送システム研究所 | 直交周波数分割多重伝送方式及びそれを用いる送信装置と受信装置 |
-
1997
- 1997-03-18 US US08/819,896 patent/US5983078A/en not_active Expired - Fee Related
-
1998
- 1998-02-19 KR KR1019980709306A patent/KR20000011146A/ko not_active Ceased
- 1998-02-19 WO PCT/IB1998/000213 patent/WO1998042092A2/en not_active Ceased
- 1998-02-19 EP EP98902145A patent/EP0925660A2/en not_active Ceased
- 1998-02-19 JP JP54027098A patent/JP2001506464A/ja not_active Ceased
- 1998-02-19 CN CNB988006138A patent/CN1149831C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US5983078A (en) | 1999-11-09 |
| WO1998042092A3 (en) | 1999-01-14 |
| WO1998042092A2 (en) | 1998-09-24 |
| KR20000011146A (ko) | 2000-02-25 |
| CN1227027A (zh) | 1999-08-25 |
| EP0925660A2 (en) | 1999-06-30 |
| CN1149831C (zh) | 2004-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050216 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050216 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070515 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070814 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20071002 |
|
| A045 | Written measure of dismissal of application [lapsed due to lack of payment] |
Free format text: JAPANESE INTERMEDIATE CODE: A045 Effective date: 20080226 |