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Class Information
Number: 341/108
Name: Coded data generation or conversion > Reversible analog to digital converters
Description: Subject matter where the converter is capable of operating either as an analog to digital converter or as a digital to analog converter.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7518538 |
Adaptive entropy coding compression with multi-level context escapes |
Apr. 14, 2009 |
| 7498964 |
Analog interface for digital instrumentation |
Mar. 3, 2009 |
| 7489263 |
Discrete-time programmable-gain analog-to-digital converter (ADC) input circuit with multi-phase reference application |
Feb. 10, 2009 |
| 7477173 |
Combined AD/DA converting apparatus |
Jan. 13, 2009 |
| 7188196 |
Method and apparatus for playing analog audio to multiple codec outputs |
Mar. 6, 2007 |
| 7138932 |
Signal converting apparatus for integrating analog-to-digital converter and digital-to-analog converter and integration unit |
Nov. 21, 2006 |
| 7088272 |
Pipeline arithmetic code decoding method and apparatus using context index predictor |
Aug. 8, 2006 |
| 6909935 |
Methods with resolution enhancement feature for improving accuracy of conversion of required chemical mechanical polishing pressure to force to be applied by polishing head to wafer |
Jun. 21, 2005 |
| 6725120 |
Apparatus and methods with resolution enhancement feature for improving accuracy of conversion of required chemical mechanical polishing pressure to force to be applied by polishing head to wa |
Apr. 20, 2004 |
| 6583745 |
A/D converter |
Jun. 24, 2003 |
| 6577987 |
Operational monitoring for a converter |
Jun. 10, 2003 |
| 6498577 |
Piecewise-linear, non-uniform ADC |
Dec. 24, 2002 |
| 6448914 |
Integrated circuit for conditioning and conversion of bi-directional discrete and analog signals |
Sep. 10, 2002 |
| 6407691 |
Providing power, clock, and control signals as a single combined signal across an isolation barrier in an ADC |
Jun. 18, 2002 |
| 6373412 |
Fast JPEG huffman encoding and decoding |
Apr. 16, 2002 |
| 6347123 |
Low-current sample rate converter |
Feb. 12, 2002 |
| 6260085 |
Changeover device which uses both analog and digital signals as input signals and supplies an analog output signal |
Jul. 10, 2001 |
| 6211802 |
Semiconductor integrated circuit for performing data transfer |
Apr. 3, 2001 |
| 5995033 |
Signal conditioning circuit including a combined ADC/DAC, sensor system, and method therefor |
Nov. 30, 1999 |
| 5929796 |
Self-calibrating reversible pipeline analog to digital and digital to analog converter |
Jul. 27, 1999 |
| 5896100 |
Method and apparatus for analog-to-digital or digital-to-analog conversion |
Apr. 20, 1999 |
| 5594438 |
Analog-to-digital converter |
Jan. 14, 1997 |
| 5493300 |
Circuit configuration for a D/A and A/D converter |
Feb. 20, 1996 |
| 5432513 |
Codec |
Jul. 11, 1995 |
| 5404141 |
Signal converting apparatus utilizing an analog-digital converting section and a digital-analog converting section |
Apr. 4, 1995 |
| 5389925 |
A/D and D/A conversion device with shared parameter generators |
Feb. 14, 1995 |
| 5373292 |
Integration type D-A/A-D Conversion apparatus capable of shortening conversion processing time |
Dec. 13, 1994 |
| 5345234 |
Method and apparatus for combining a flash analog to digital converter with digital to analog functions |
Sep. 6, 1994 |
| 5317529 |
Digital filter using intermediate holding registers and common accumulators and multipliers |
May. 31, 1994 |
| 5252972 |
Codec having controllable frame synchronizing and clocking signals |
Oct. 12, 1993 |
| 5003309 |
Apparatus having shared architecture for analog-to-digital and for digital-to-analog signal conversion |
Mar. 26, 1991 |
| 5001480 |
Analog-to-digital and digital-to-analog conversion system and echo cancellation device including the same |
Mar. 19, 1991 |
| 4908620 |
Analog-to-digital and digital-to-analog converter |
Mar. 13, 1990 |
| 4622536 |
Ratio independent cyclic A/D and D/A conversion using a reciprocating reference approach |
Nov. 11, 1986 |
| 4609906 |
Digital-to-analog/analog-to-digital dual mode circuit |
Sep. 2, 1986 |
| 4454500 |
Analog data acquisition device |
Jun. 12, 1984 |
| 4445111 |
Bi-polar electronic signal converters with single polarity accurate reference source |
Apr. 24, 1984 |
| 4404544 |
.mu.-Law/A-law PCM CODEC |
Sep. 13, 1983 |
| 4385286 |
Use of single reference voltage for analog to digital or digital to analog conversion of bipolar signals |
May. 24, 1983 |
| 4384278 |
One-bit codec with slope overload correction |
May. 17, 1983 |
| 4380756 |
Charge redistribution circuit having reduced area |
Apr. 19, 1983 |
| 4367456 |
PCM and PAM Conversion circuit including signal level variation on the PCM portion of the circuit |
Jan. 4, 1983 |
| 4350975 |
Dual bandwidth autozero loop for a voice frequency CODEC |
Sep. 21, 1982 |
| 4348768 |
PCM Codec using common D/A converter for encoding and decoding |
Sep. 7, 1982 |
| 4291298 |
Reversible analog to digital converter with high precision |
Sep. 22, 1981 |
| 4250492 |
Non-uniform weighting circuitry |
Feb. 10, 1981 |
| 4203092 |
Analogue-to-digital converter |
May. 13, 1980 |
| 4184152 |
Circuit for converting from analog signal into digital signal and vice versa by using insulated gate field effect transistors |
Jan. 15, 1980 |
| 4162376 |
Conference call circuit using reversible analog to digital converter |
Jul. 24, 1979 |
| 4160243 |
Asynchronous reversible analog to digital converter |
Jul. 3, 1979 |
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