JPH09504669A - 2つのスペクトル拡散周波数帯を有するデュアルモード無線装置 - Google Patents
2つのスペクトル拡散周波数帯を有するデュアルモード無線装置Info
- Publication number
- JPH09504669A JPH09504669A JP7513325A JP51332595A JPH09504669A JP H09504669 A JPH09504669 A JP H09504669A JP 7513325 A JP7513325 A JP 7513325A JP 51332595 A JP51332595 A JP 51332595A JP H09504669 A JPH09504669 A JP H09504669A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- spread spectrum
- mhz
- synthesizer
- output
- 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.)
- Granted
Links
- 238000001228 spectrum Methods 0.000 title claims abstract description 20
- 230000009977 dual effect Effects 0.000 abstract description 10
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 4
- 230000002902 bimodal effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/10—Code generation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
-
- 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
- H04B1/0057—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
- H04B1/38—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
-
- 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
- H04B1/69—Spread spectrum techniques
-
- 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
- H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
- H04B7/2634—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for channel frequency control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/12—Modulator circuits; Transmitter circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Transmitters (AREA)
- Transceivers (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.1つの周波数シンセサイザを有しかつ複数の結合しないばらばらの出力周波 数帯を有するスペクトル拡散変調器。 2.周波数シンセサイザと、 上記周波数シンセサイザに接続された乗算器と、 上記乗算器に接続されたバイナリエンコーダとを備えたスペクトル拡散変調器 。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14649293A | 1993-11-01 | 1993-11-01 | |
US08/146,492 | 1993-11-01 | ||
PCT/US1994/012464 WO1995012925A1 (en) | 1993-11-01 | 1994-10-31 | Dual-mode wireless unit with two spread-spectrum frequency bands |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09504669A true JPH09504669A (ja) | 1997-05-06 |
JP3692140B2 JP3692140B2 (ja) | 2005-09-07 |
Family
ID=22517619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51332595A Expired - Lifetime JP3692140B2 (ja) | 1993-11-01 | 1994-10-31 | 2つのスペクトル拡散周波数帯を有するデュアルモード無線装置 |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0727112A4 (ja) |
JP (1) | JP3692140B2 (ja) |
KR (1) | KR960706234A (ja) |
CA (1) | CA2175085A1 (ja) |
IL (1) | IL111471A (ja) |
WO (1) | WO1995012925A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL114924A (en) * | 1994-08-18 | 2000-02-17 | Omnipoint Corp | Multi-land multi-mode communication system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5537002A (en) * | 1978-08-24 | 1980-03-14 | Fujitsu Ltd | Fs modulation system |
US4435821A (en) * | 1981-03-24 | 1984-03-06 | Nippon Electric Co., Ltd. | Receiver in a frequency hopping communication system |
DE3627045A1 (de) * | 1986-08-09 | 1988-05-11 | Quante Fernmeldetechnik Gmbh | Alarmanlage |
US4979170A (en) * | 1988-01-19 | 1990-12-18 | Qualcomm, Inc. | Alternating sequential half duplex communication system |
US5079768A (en) * | 1990-03-23 | 1992-01-07 | Metricom, Inc. | Method for frequency sharing in frequency hopping communications network |
AU642571B2 (en) * | 1991-01-21 | 1993-10-21 | Sony Corporation | Spread spectrum signal receiving apparatus |
CA2102914A1 (en) * | 1991-05-13 | 1992-11-26 | Robert C. Dixon | Dual mode transmitter and receiver |
-
1994
- 1994-10-31 KR KR1019960702229A patent/KR960706234A/ko not_active Application Discontinuation
- 1994-10-31 EP EP95908412A patent/EP0727112A4/en not_active Withdrawn
- 1994-10-31 CA CA002175085A patent/CA2175085A1/en not_active Abandoned
- 1994-10-31 WO PCT/US1994/012464 patent/WO1995012925A1/en not_active Application Discontinuation
- 1994-10-31 IL IL111471A patent/IL111471A/en not_active IP Right Cessation
- 1994-10-31 JP JP51332595A patent/JP3692140B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0727112A4 (en) | 1998-01-21 |
CA2175085A1 (en) | 1995-05-11 |
IL111471A (en) | 1998-06-15 |
IL111471A0 (en) | 1994-12-29 |
KR960706234A (ko) | 1996-11-08 |
EP0727112A1 (en) | 1996-08-21 |
WO1995012925A1 (en) | 1995-05-11 |
JP3692140B2 (ja) | 2005-09-07 |
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Legal Events
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