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Class Information
Number: 375/239
Name: Pulse or digital communications > Pulse position, frequency, or spacing modulation
Description: Subject matter in which the information to be transmitted is conveyed by means of the relative position of the pulses in a series of transmitted pulses, the time or spacing between pulses, or the repetition rate (frequency) of the pulses.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620095 |
RF modem utilizing saw device with pulse shaping and programmable frequency synthesizer |
Nov. 17, 2009 |
| 7620369 |
Adaptive frame durations for time-hopped impulse radio systems |
Nov. 17, 2009 |
| 7613222 |
Wideband communication method |
Nov. 3, 2009 |
| 7613239 |
Digital signal offset adjusting apparatus and pulse pattern generator using the same |
Nov. 3, 2009 |
| 7613255 |
Method for estimating communication conditions affecting an UWB wireless link |
Nov. 3, 2009 |
| 7590198 |
Impulse-based communication system |
Sep. 15, 2009 |
| 7586293 |
Digital modulation circuit |
Sep. 8, 2009 |
| 7587002 |
Wireless transmitting and receiving device and method |
Sep. 8, 2009 |
| 7570713 |
System and method for anticipatory receiver switching based on signal quality estimation |
Aug. 4, 2009 |
| 7564863 |
Frequency offset differential pulse position modulation |
Jul. 21, 2009 |
| 7561808 |
System and method of using variable pulses for symbology |
Jul. 14, 2009 |
| 7551670 |
UWB communication device and UWB communication method |
Jun. 23, 2009 |
| 7539245 |
System and method for digital transmission and modulation of conjugate pulse position |
May. 26, 2009 |
| 7539279 |
Logarithmic spectrum transmitter waveform for controlled-source electromagnetic surveying |
May. 26, 2009 |
| 7535957 |
Transmitter circuit, receiver circuit, clock data recovery phase locked loop circuit, data transfer method and data transfer system |
May. 19, 2009 |
| 7535958 |
Hybrid wired and wireless chip-to-chip communications |
May. 19, 2009 |
| 7532668 |
Transmitter and transmitting method, receiver and receiving method, pulse detection method, and tracking method |
May. 12, 2009 |
| 7525398 |
Acoustically communicating data signals across an electrical isolation barrier |
Apr. 28, 2009 |
| 7480331 |
Method and device for pulse width modulation |
Jan. 20, 2009 |
| 7466752 |
Determination of the position of a pulse peak |
Dec. 16, 2008 |
| 7466753 |
Microcontroller having a digital to frequency converter and/or a pulse frequency modulator |
Dec. 16, 2008 |
| 7464323 |
Algebraic geometric code adapted to error bursts |
Dec. 9, 2008 |
| 7460623 |
Digital two-stage automatic gain control |
Dec. 2, 2008 |
| 7460831 |
System and method for excluding narrow band noise from a communication channel |
Dec. 2, 2008 |
| 7457350 |
Communications systems and methods |
Nov. 25, 2008 |
| 7453950 |
System and method of efficiently modulating data using symbols having more than one pulse |
Nov. 18, 2008 |
| 7447251 |
Frequency hopping spread spectrum scheme for RFID reader |
Nov. 4, 2008 |
| 7436883 |
Nonlinear inversion |
Oct. 14, 2008 |
| 7418036 |
Method and circuit for timing pulse generation |
Aug. 26, 2008 |
| 7418297 |
Frame length modulation and pulse position modulation system |
Aug. 26, 2008 |
| 7414463 |
Demodulator for demodulating pulse position modulated signal |
Aug. 19, 2008 |
| 7409002 |
Signal modulation |
Aug. 5, 2008 |
| 7403746 |
Adaptive frame durations for time-hopped impulse radio systems |
Jul. 22, 2008 |
| 7388911 |
In-band-on-channel broadcast system for digital data |
Jun. 17, 2008 |
| 7386045 |
Dynamic differentiated link adaptation for ultra-wideband communication system |
Jun. 10, 2008 |
| 7386071 |
Method and apparatus for decoding an incident UWB signal with inter symbol interferences |
Jun. 10, 2008 |
| 7376357 |
System and method of using variable pulses for symbology |
May. 20, 2008 |
| 7376208 |
Reception method for packetized information with automatic repeat request |
May. 20, 2008 |
| 7366235 |
UWB demodulating apparatus |
Apr. 29, 2008 |
| 7358781 |
Automation device with stored profile |
Apr. 15, 2008 |
| 7356100 |
Estimating channel impulse response and equalizer coefficients in UWB communication systems |
Apr. 8, 2008 |
| 7352793 |
System and method for ultra wideband communications using multiple code words |
Apr. 1, 2008 |
| 7349471 |
PPM receiving system and method using time-interleaved integrators |
Mar. 25, 2008 |
| 7336736 |
Method of detecting and processing pulsed signals in a radio signal |
Feb. 26, 2008 |
| 7295082 |
Pulse frequency modulation oscillating circuit for a DC/DC converter |
Nov. 13, 2007 |
| 7295638 |
Communication device |
Nov. 13, 2007 |
| 7289561 |
Method and device for controlling a pulse generator for the emission of pulse signal of ultra wideband position-modulated type |
Oct. 30, 2007 |
| 7289560 |
Digital modulation and demodulation technique for reliable wireless (both RF and IR) and wired high bandwidth data transmission |
Oct. 30, 2007 |
| 7283011 |
Method for performing dual phase pulse modulation |
Oct. 16, 2007 |
| 7280615 |
Method for making a clear channel assessment in a wireless network |
Oct. 9, 2007 |
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