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Class Information
Number: 332/102
Name: Modulators > Frequency shift keying modulator or minimum shift keying modulator > Including discrete semiconductor device
Description: Subject matter containing an electrical device whose constituent portions are constructed from solid material having room temperature conductivity between that of a conductor and an insulator and which conductivity is typically modified through the addition of small amounts of dopant.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7065157 |
GMSK modulation techniques |
Jun. 20, 2006 |
| 6674334 |
Oscillator having surface acoustic wave resonator and oscillation circuit |
Jan. 6, 2004 |
| 6653896 |
Differential rf/microwave power amplifier using independent synchronized polar modulators |
Nov. 25, 2003 |
| 6452461 |
High-speed power-efficient coded M-ary FSK modulator |
Sep. 17, 2002 |
| 6317009 |
Frequency shift key modulating oscillator |
Nov. 13, 2001 |
| 6225873 |
Frequency shift key modulating oscillator |
May. 1, 2001 |
| 6150894 |
Oscillator having minimum frequency and amplitude fluctuation due to temperature variation |
Nov. 21, 2000 |
| 6078226 |
Integrated circuit implementation of a frequency shift keying oscillator |
Jun. 20, 2000 |
| 5949826 |
Data transmission and reception system |
Sep. 7, 1999 |
| 5926072 |
FM modulator using a monostable multivibrator |
Jul. 20, 1999 |
| 5793261 |
Saw stabilized FSK oscillator circuit |
Aug. 11, 1998 |
| 5532654 |
FSK modulator using saw resonator with switchable capacitors |
Jul. 2, 1996 |
| 5367537 |
Saw-based FSK modulating circuit |
Nov. 22, 1994 |
| 5254958 |
Phase-lock-loop circuit and method for compensating, data bias in the same |
Oct. 19, 1993 |
| 5157358 |
High speed frequency agile FSK modulator |
Oct. 20, 1992 |
| 5136264 |
Transmitter including an FSK modulator having a switched capacitor |
Aug. 4, 1992 |
| 5030928 |
Zero crossing modulator |
Jul. 9, 1991 |
| 5016260 |
Modulator and transmitter |
May. 14, 1991 |
| 4990867 |
Modulator |
Feb. 5, 1991 |
| 4684853 |
Garage door opener using transmitter with SAW oscillator modulator |
Aug. 4, 1987 |
| 4682344 |
Rf fsk transmitter |
Jul. 21, 1987 |
| 4573025 |
Drift-equalized, multi-frequency oscillator |
Feb. 25, 1986 |
| 4555792 |
Transmitter for transmitting an FSK-modulated signal |
Nov. 26, 1985 |
| 4543541 |
FSK modulation using switched outputs of two oscillators |
Sep. 24, 1985 |
| 4516086 |
Frequency modulator for the transmission of analog data |
May. 7, 1985 |
| 4389622 |
System for preventing transient induced errors in phase locked loop |
Jun. 21, 1983 |
| 4063196 |
Plural oscillator phase continuous frequency encoder |
Dec. 13, 1977 |
| 4063197 |
Plural transistor oscillator phase continuous frequency encoder circuit |
Dec. 13, 1977 |
| 3991389 |
Digital frequency shift key modulator |
Nov. 9, 1976 |
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