SG22795G - Automatically self-calibrating oscillators in heterodyned radio receivers - Google Patents
Automatically self-calibrating oscillators in heterodyned radio receiversInfo
- Publication number
- SG22795G SG22795G SG22795A SG22795A SG22795G SG 22795 G SG22795 G SG 22795G SG 22795 A SG22795 A SG 22795A SG 22795 A SG22795 A SG 22795A SG 22795 G SG22795 G SG 22795G
- Authority
- SG
- Singapore
- Prior art keywords
- radio receivers
- automatically self
- heterodyned
- oscillators
- calibrating
- Prior art date
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
- H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
-
- 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
- H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
-
- 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
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
- H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
- H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
- H03L1/023—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using voltage variable capacitance diodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG22795A SG22795G (en) | 1988-05-28 | 1995-02-11 | Automatically self-calibrating oscillators in heterodyned radio receivers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8812773A GB2220317B (en) | 1988-05-28 | 1988-05-28 | Automatically self-calibrating oscillators in heterodyned radio receivers |
SG22795A SG22795G (en) | 1988-05-28 | 1995-02-11 | Automatically self-calibrating oscillators in heterodyned radio receivers |
Publications (1)
Publication Number | Publication Date |
---|---|
SG22795G true SG22795G (en) | 1995-06-16 |
Family
ID=10637774
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG22895A SG22895G (en) | 1988-05-28 | 1995-02-11 | Automatically self-calibrating oscillators in heterodyned radio reveivers |
SG22795A SG22795G (en) | 1988-05-28 | 1995-02-11 | Automatically self-calibrating oscillators in heterodyned radio receivers |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG22895A SG22895G (en) | 1988-05-28 | 1995-02-11 | Automatically self-calibrating oscillators in heterodyned radio reveivers |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP2814638B2 (en) |
KR (1) | KR900702657A (en) |
GB (2) | GB2220317B (en) |
HK (2) | HK87595A (en) |
SG (2) | SG22895G (en) |
WO (1) | WO1989011756A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4209843A1 (en) * | 1992-03-26 | 1993-11-18 | Telefunken Microelectron | Temp. compensated oscillator circuit - stores tuning element setting signal and corresponding temp. signal during calibration phase for subsequent provision of correction signal |
GB2273405B (en) * | 1992-12-10 | 1996-12-04 | Motorola Israel Ltd | A communications device and method of calibration therefor |
JP2689909B2 (en) * | 1994-07-25 | 1997-12-10 | 日本電気株式会社 | Frequency control circuit |
US6606009B2 (en) * | 2001-03-08 | 2003-08-12 | Schlumberger Technology Corporation | Self-compensating ovenized clock adapted for wellbore applications |
GB0110497D0 (en) | 2001-04-28 | 2001-06-20 | Mitel Semiconductor Ltd | Tuner and method of aligning a tuner |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1600393A (en) * | 1977-09-23 | 1981-10-14 | Racal Res Ltd | Correcting oscillator output frequency for temperature variations |
NL179435C (en) * | 1977-10-26 | 1986-09-01 | Philips Nv | RECEIVER WITH A FREQUENCY SYNTHESIS CIRCUIT. |
DE2856320A1 (en) * | 1978-12-27 | 1980-07-17 | Roehm Gmbh | ENZYMATIC STICKING PROCESS |
GB2064248B (en) * | 1979-11-21 | 1984-05-16 | Philcom Electronics Blackburn | Temperature compensated crystal oscillators |
JPS56126313A (en) * | 1980-03-10 | 1981-10-03 | Trio Kenwood Corp | Intermediate frequency control method for fm receiver |
JPS5977259A (en) * | 1982-10-25 | 1984-05-02 | Matsushita Electric Ind Co Ltd | Solar heat collector |
DE3441255A1 (en) * | 1984-11-12 | 1986-05-15 | Hagenuk GmbH, 2300 Kiel | OSCILLATOR CIRCUIT |
DE3510559A1 (en) * | 1985-03-21 | 1986-09-25 | H. u. C. Elektronik Hansen & Co, 1000 Berlin | CIRCUIT FOR AUTOMATIC TUNING FOR FM RECEIVERS |
JPS61220527A (en) * | 1985-03-26 | 1986-09-30 | Fujitsu Ltd | Crystal oscillator |
JPS623527A (en) * | 1985-06-29 | 1987-01-09 | Nec Corp | Piezoelectric oscillator with constant temperature oven |
DE3526363A1 (en) * | 1985-07-19 | 1987-01-22 | Siemens Ag | METHOD FOR PRODUCING AN ADJUSTABLE FREQUENCY GENERATOR |
JPS62116003A (en) * | 1985-11-15 | 1987-05-27 | Fujitsu Ltd | Oscillator |
US4746879A (en) * | 1986-08-28 | 1988-05-24 | Ma John Y | Digitally temperature compensated voltage-controlled oscillator |
-
1988
- 1988-05-28 GB GB8812773A patent/GB2220317B/en not_active Expired - Lifetime
-
1989
- 1989-05-25 JP JP1506396A patent/JP2814638B2/en not_active Expired - Lifetime
- 1989-05-25 WO PCT/US1989/002285 patent/WO1989011756A1/en unknown
-
1990
- 1990-01-23 KR KR1019900700124A patent/KR900702657A/en not_active Application Discontinuation
- 1990-08-30 GB GB9018896A patent/GB2244877B/en not_active Expired - Lifetime
-
1995
- 1995-02-11 SG SG22895A patent/SG22895G/en unknown
- 1995-02-11 SG SG22795A patent/SG22795G/en unknown
- 1995-06-01 HK HK87595A patent/HK87595A/en not_active IP Right Cessation
- 1995-06-01 HK HK87695A patent/HK87695A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HK87595A (en) | 1995-06-09 |
GB2220317A (en) | 1990-01-04 |
JPH04504035A (en) | 1992-07-16 |
HK87695A (en) | 1995-06-09 |
GB8812773D0 (en) | 1988-06-29 |
GB2244877A (en) | 1991-12-11 |
KR900702657A (en) | 1990-12-08 |
GB2220317B (en) | 1992-07-22 |
SG22895G (en) | 1995-06-16 |
WO1989011756A1 (en) | 1989-11-30 |
GB2244877B (en) | 1992-07-22 |
GB9018896D0 (en) | 1990-10-17 |
JP2814638B2 (en) | 1998-10-27 |
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