Patents
Patent data provided by The
European Patent Office
and updated through early 2009. Full text patent data loaded weekly coming soon.
-
First
-
Previous
-
1
-
US4611194 (A), filed
Aug 16, 1985
, published
Sep 09, 1986
- US ARMY
An apparatus is disclosed which permits a high speed waveform, for example in the form of a series of analog data pulses, to be sampled and converted into a series of digital values. Each analog data pulse is applied in parallel to a multiplicity of A/D...
US5307063 (A), filed
Sep 30, 1991
, published
Apr 26, 1994
- DORNIER GMBH
A superconducting analog-digital converter in which at least one of the electrical feed lines or conductance lines is replaced by an optical feed line. Current input and output signals being converted or generated by optoelectronic and/or magneto-optical...
US5786782 (A), filed
Dec 18, 1996
, published
Jul 28, 1998
- NOKIA MOBILE PHONES LTD
A/D and D/A converters are effectively utilized in a mobile phone, for example, by multiplexing the signals before the conversion. Both time division multiplexing and frequency division multiplexing can be used. When frequency division multiplexing is used,...
US5963159 (A), filed
Dec 05, 1997
, published
Oct 05, 1999
- ADVANCED MICRO DEVICES INC
A gain control arrangement for use in analog-to-digital conversion includes a current generator that generates gain currents as a function of externally applied resistances. The gain currents are sequentially provided to the analog-to-digital converter,...
US6177893 (B1), filed
Sep 15, 1998
, published
Jan 23, 2001
In one aspect, the present invention is directed to a converter for converting a signal from a first format to a second format. The converter includes a decomposition section, a converter array operatively coupled to the decomposition section, and a recombinat...
US6177898 (B1), filed
Nov 11, 1999
, published
Jan 23, 2001
A method and apparatus for converting an analog waveform into digital messages and for reconstructing the analog waveform from the information contained in the digital messages. The digital messages describe a change in amplitude of the analog waveform, the...
US6313770 (B1), filed
Jun 15, 2000
, published
Nov 06, 2001
- SIGMATEL INC
In accordance with a specific embodiment of the present invention, a system is disclosed having an analog to digital converter and control module. The analog-to-digital converter includes an analog input, digital output, and control input. The control input of...
US6653963 (B1), filed
Jun 07, 2002
, published
Nov 25, 2003
- INFINEON TECHNOLOGIES AG
An A/D converter arrangement comprises an A/D converter (6) to which analog signals from a plurality of signal channels (2) can be fed for A/D conversion. With the help of an appropriate control means (8), converter parameters of the A/D converter (6) or even...
US6724337 (B1), filed
Jul 02, 2002
, published
Apr 20, 2004
- ADDEST TECHNOVATION PTE LTD
A method is provided for analog/digital converting of at least one analog low-frequency signal with an analog/digital converter which can detect only an analog signal with a frequency above a predetermined border frequency value, wherein at least one analog...
US6744390 (B1), filed
Mar 31, 2000
, published
Jun 01, 2004
- BOEING CO
An analog to digital converter for input signals having a low frequency component (such as DC) upon which is superimposed an AC component, the magnitude of the AC component being less than or equal to one-half the span of the analog to digital converter.
US7012557 (B2), filed
Aug 18, 2004
, published
Mar 14, 2006
- MICRON TECHNOLOGY INC
An imager with a ramp modulation analog-to-digital converter. The ramp modulation analog-to-digital converter uses a ramp generator capable of generating ramp voltages that change by more than one step to reduce the number of steps in the conversion process.
US7012558 (B1), filed
Dec 29, 2004
, published
Mar 14, 2006
- FUJITSU LTD
An amplifying circuit amplifies and outputs voltage difference between first external input voltage and voltage corresponding to second external input voltage. An A/D converting circuit converts the output voltage of the amplifying circuit into a digital value...
US7015852 (B1), filed
Nov 30, 2004
, published
Mar 21, 2006
- FREESCALE SEMICONDUCTOR INC
A method and apparatus are provided for reducing the size and power of cyclic analog-to-digital converter (ADC) conversion circuits. During each cycle, the ADC conversion circuit generates a plurality of bits. The improved ADC includes a scaling/reference...
US7015854 (B2), filed
Jul 12, 2004
, published
Mar 21, 2006
- MASSACHUSETTS INST TECHNOLOGY
A new architecture is provided in which a master A/D converter of limited precision controls the adjustment-charge steering of a set of similar slave A/D converter pipelines. This architecture relieves the layout constraints imposed by prior architectures and...
US7023372 (B1), filed
Feb 09, 2005
, published
Apr 04, 2006
- ANALOG DEVICES INC
A switched-capacitor circuit for use in analog-to-digital conversion samples an input signal with respect to a reference voltage such that it significantly reduces a DAC settling time interval during each bit trial. In one exemplary embodiment, the switched-ca...
