WO1996008883A1 - Dual-mode satellite/cellular phone with a frequency synthesizer - Google Patents
Dual-mode satellite/cellular phone with a frequency synthesizer Download PDFInfo
- Publication number
- WO1996008883A1 WO1996008883A1 PCT/US1995/012413 US9512413W WO9608883A1 WO 1996008883 A1 WO1996008883 A1 WO 1996008883A1 US 9512413 W US9512413 W US 9512413W WO 9608883 A1 WO9608883 A1 WO 9608883A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- frequency
- signal
- signals
- radio
- satellite system
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18563—Arrangements for interconnecting multiple systems
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
- H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
- H03L7/1974—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
- H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU37297/95A AU691042B2 (en) | 1994-09-14 | 1995-09-01 | Dual-mode satellite/cellular phone with a frequency syntesizer |
DE69534121T DE69534121T2 (en) | 1994-09-14 | 1995-09-01 | DUAL-MODE SATELLITE / CELLULAR TELEPHONE WITH A FREQUENCY SYNTHETIZER |
JP8510443A JPH10505981A (en) | 1994-09-14 | 1995-09-01 | Dual mode satellite / cellular telephone with frequency synthesizer |
EP95935177A EP0781475B1 (en) | 1994-09-14 | 1995-09-01 | Dual-mode satellite/cellular phone with a frequency synthesizer |
CA002199933A CA2199933C (en) | 1994-09-14 | 1995-09-01 | Dual-mode satellite/cellular phone with a frequency synthesizer |
FI971055A FI971055A (en) | 1994-09-14 | 1997-03-13 | Dual mode satellite / cell phone with frequency synthesizer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/305,780 US5535432A (en) | 1994-09-14 | 1994-09-14 | Dual-mode satellite/cellular phone with a frequency synthesizer |
US08/305,780 | 1994-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996008883A1 true WO1996008883A1 (en) | 1996-03-21 |
Family
ID=23182312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1995/012413 WO1996008883A1 (en) | 1994-09-14 | 1995-09-01 | Dual-mode satellite/cellular phone with a frequency synthesizer |
Country Status (9)
Country | Link |
---|---|
US (2) | US5535432A (en) |
EP (1) | EP0781475B1 (en) |
JP (1) | JPH10505981A (en) |
CN (1) | CN1087531C (en) |
AU (1) | AU691042B2 (en) |
CA (1) | CA2199933C (en) |
DE (1) | DE69534121T2 (en) |
FI (1) | FI971055A (en) |
WO (1) | WO1996008883A1 (en) |
Cited By (9)
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US5930725A (en) * | 1997-01-30 | 1999-07-27 | Telefonaktiebolaget Lm Ericsson | Wireless terminal |
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US6370360B1 (en) | 1997-09-11 | 2002-04-09 | Telefonaktiebolaget Lm Ericsson | Arrangement and method for radio communication |
US6628927B1 (en) | 1996-12-23 | 2003-09-30 | Nokia Mobile Phones Limited | Method and apparatus for transmitting and receiving signals |
WO2010106019A1 (en) * | 2009-03-17 | 2010-09-23 | Thales | Device for controlling the frequency of a satellite remote-controlled transmitter/receiver, and related transmitter and receiver |
WO2012094650A1 (en) * | 2011-01-07 | 2012-07-12 | Qualcomm Atheros, Inc. | Calibration of synthesizer phase using reference harmonic |
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Also Published As
Publication number | Publication date |
---|---|
DE69534121D1 (en) | 2005-05-04 |
US5610559A (en) | 1997-03-11 |
US5535432A (en) | 1996-07-09 |
FI971055A0 (en) | 1997-03-13 |
CN1087531C (en) | 2002-07-10 |
CA2199933A1 (en) | 1996-03-21 |
EP0781475A1 (en) | 1997-07-02 |
CN1163027A (en) | 1997-10-22 |
EP0781475B1 (en) | 2005-03-30 |
FI971055A (en) | 1997-05-14 |
AU691042B2 (en) | 1998-05-07 |
CA2199933C (en) | 2005-01-25 |
JPH10505981A (en) | 1998-06-09 |
AU3729795A (en) | 1996-03-29 |
DE69534121T2 (en) | 2005-09-29 |
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