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Class Information
Number: 375/247
Name: Pulse or digital communications > Pulse code modulation > Differential > Single bit (delta)
Description: Subject matter where there is transmitted at most one pulse for each sample of the analog signal.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7605737 |
Data encoding in a clocked data interface |
Oct. 20, 2009 |
| 7561635 |
Variable coder apparatus for resonant power conversion and method |
Jul. 14, 2009 |
| 7450648 |
Digital signal processing device, a method and a delta-sigma modulator using the same method |
Nov. 11, 2008 |
| 7430239 |
Bit-detection arrangement and apparatus for reproducing information |
Sep. 30, 2008 |
| 7385538 |
Delta sigma modulator with multiple filters |
Jun. 10, 2008 |
| 7310382 |
Linearized switch-based power amplifier |
Dec. 18, 2007 |
| 7308032 |
Oversampling D/A converter and method for shaping nonlinear intersymbol interference in an oversampling D/A converter |
Dec. 11, 2007 |
| 7292171 |
Method and device for the version of digital signals with heterogeneous formats and application thereof to the digital amplification of audio signals |
Nov. 6, 2007 |
| 7289565 |
Multiple description coding communication system |
Oct. 30, 2007 |
| 7266152 |
Digital signal processing device and digital signal processing method |
Sep. 4, 2007 |
| 7257164 |
Class D amplifier |
Aug. 14, 2007 |
| 7236112 |
Self-tuning output digital filter for direct conversion delta-sigma transmitter |
Jun. 26, 2007 |
| 7227482 |
Complex band-pass filter for use in digital radio receiver and complex band-pass .DELTA.-.SIGMA. AD modulator using the same |
Jun. 5, 2007 |
| 7224757 |
Method and apparatus for improving the performance of delta-sigma modulators |
May. 29, 2007 |
| 7194036 |
Digital data processing circuits and systems with delta-sigma modulator filtering |
Mar. 20, 2007 |
| 7145954 |
Method and apparatus for mapping pulses to a non-fixed layout |
Dec. 5, 2006 |
| 7136420 |
Recording of super-audio or like one-bit-per-sample signals on a PCM recorder |
Nov. 14, 2006 |
| 7116721 |
Delta-sigma modulators with integral digital low-pass filtering |
Oct. 3, 2006 |
| 7113118 |
Digital signal encoding apparatus and method, digital signal decoding apparatus and method, and digital signal transmission system |
Sep. 26, 2006 |
| 7110460 |
Delta-sigma modulators with integral digital low-pass filtering |
Sep. 19, 2006 |
| 7098828 |
Complex band-pass .DELTA..SIGMA. AD modulator for use in AD converter circuit |
Aug. 29, 2006 |
| 7075995 |
Three-order sigma-delta modulator |
Jul. 11, 2006 |
| 7068196 |
Digital signal processing device and digital signal processing method |
Jun. 27, 2006 |
| 7054372 |
Digital transmission line tap circuit |
May. 30, 2006 |
| 7034728 |
Bandpass delta-sigma modulator with distributed feedforward paths |
Apr. 25, 2006 |
| 7034727 |
Bandpass sigma-delta modulator |
Apr. 25, 2006 |
| 7016421 |
Time-interleaved delta sigma analog to digital modulator |
Mar. 21, 2006 |
| 6990152 |
Digital signal processing device and a method and a .DELTA.-.sigma. sigma modulator using the same method |
Jan. 24, 2006 |
| 6975682 |
Multi-bit delta-sigma analog-to-digital converter with error shaping |
Dec. 13, 2005 |
| 6970753 |
Storage and transmission of one-bit data |
Nov. 29, 2005 |
| 6934324 |
Zero value-detecting circuit |
Aug. 23, 2005 |
| 6920182 |
Delta-sigma modulator system and method |
Jul. 19, 2005 |
| 6874045 |
Digital signal processing apparatus and processing method, and digital signal reproduction/reception system |
Mar. 29, 2005 |
| 6864815 |
Method and apparatus for efficient mixed signal processing in a digital amplifier |
Mar. 8, 2005 |
| 6861968 |
Signal processing system with baseband noise modulation and noise filtering |
Mar. 1, 2005 |
| 6853633 |
Methods of providing signal parameter information using delta-modulation and related systems and terminals |
Feb. 8, 2005 |
| 6842486 |
Signal processing system with baseband noise modulation and noise fold back reduction |
Jan. 11, 2005 |
| 6839387 |
Self-dithering sigma-delta converter and communication device incorporating same |
Jan. 4, 2005 |
| 6823019 |
Reduced DC transients in a sigma delta filter |
Nov. 23, 2004 |
| 6804291 |
Device and method of digital gain programming using sigma-delta modulator |
Oct. 12, 2004 |
| 6768435 |
Bandpass sigma-delta modulator |
Jul. 27, 2004 |
| 6765445 |
Digitally-synthesized loop filter circuit particularly useful for a phase locked loop |
Jul. 20, 2004 |
| 6765518 |
Method and apparatus for efficient mixed signal processing in a digital amplifier |
Jul. 20, 2004 |
| 6748025 |
Direct conversion delta-sigma receiver |
Jun. 8, 2004 |
| 6727833 |
Adaptive .SIGMA..DELTA. modulation with one-bit quantization |
Apr. 27, 2004 |
| 6639946 |
Sigma delta modulator with SAW filter |
Oct. 28, 2003 |
| 6636566 |
Method and apparatus for specifying pulse characteristics using a code that satisfies predefined criteria |
Oct. 21, 2003 |
| 6636567 |
Method of specifying non-allowable pulse characteristics |
Oct. 21, 2003 |
| 6628720 |
Transmitting apparatus and reproducing apparatus |
Sep. 30, 2003 |
| 6600788 |
Narrow-band filter including sigma-delta modulator implemented in a programmable logic device |
Jul. 29, 2003 |
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