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| Number | Title | Issue Date |
| 8081101 | Analog-to-digital converter using oscillators An apparatus is provided which has a first analog input and a second analog input. In a particular implementation, the first analog input is coupled to a first controllable oscillator and the second analog input is coupled to a second controllable oscillator. First ... | 12/20/2011 |
| 8063810 | Unfolding VCO-based quantization circuit Apparatus and methods are provided for a voltage-controlled oscillator (VCO) quantization circuit. A quantization circuit comprises an input node for an input signal, a VCO quantizer coupled to the input node, and an output generation module coupled to the VCO quant... | 11/22/2011 |
| 7999716 | Analog-digital conversion circuit, timing signal generating circuit, and control device There are provided an analog-digital converter circuit capable of performing the same degree of operation as being performed at a high-frequency oscillation pulse using a low-frequency oscillation pulse without using the high-frequency oscillation pulse, a timing si... | 08/16/2011 |
| 7932848 | Pulse delay circuit and A/D converter including same The pulse delay circuit includes a plurality of delay units connected in series or in a ring, each of the delay units being constituted of at least one inverter gate circuit grounded to a ground line, and configured to delay a pulse signal passing therethrough by a ... | 04/26/2011 |
| 7864093 | Pulse phase difference detecting circuit and A/D converter using the same Provided is a pulse phase difference detecting circuit including: a first delay circuit that receives a first pulse signal to output a signal obtained by delaying the first pulse signal as a second pulse signal and includes multiple serially-connected delay units ha... | 01/04/2011 |
| 7786919 | Systems and/or devices for providing an isolated analog output or analog input Certain exemplary embodiments can provide a method, which can comprise transmitting a recovered analog input signal to a programmable logic controller. The recovered analog input signal can be converted, on a downstream side of an isolation device, from a converted ... | 08/31/2010 |
| 7782241 | Signal processing method and device, and analog/digital converting device The first and second time-domain signals are received, and a difference between the pulse width of the first time-domain signal and the pulse width of the second time-domain signal within a unit time for carrying one item of analog signal information is obtained. Th... | 08/24/2010 |
| 7755530 | Analog to digital converter with a series of delay units An A/D converter has a series of M delay units through which a pulse signal is transmitted while being delayed in each delay unit by a delay time depending on a level of an analog signal. A unit of the converter latches the pulse signal outputted from each delay uni... | 07/13/2010 |
| 7741986 | Method for controlling delay time of pulse delay circuit and pulse delay circuit thereof An inverter circuit configuring a delay unit is a so-called CMOS transistor including a PMOS transistor and an NMOS transistor, of which respective gates are interconnected and respective drains are interconnected. The source and a back gate of the NMOS transistor a... | 06/22/2010 |
| 7737874 | Method of multi-channel data readout and acquisition A method for dealing with the problem of simultaneous continuous readout of large number of data channels from the set of multiple sensors in instances where the use of multiple amplitude-to-digital converters is not practical or causes undesirable extra noise and d... | 06/15/2010 |
| 7612699 | A/D converter circuit and A/D conversion method An A/D converter circuit uses first and second ring delay lines. The first and second ring delay lines are supplied with input signals, which increase/decrease oppositely from each other with respect to change directions. In each ring delay line, a first counter cou... | 11/03/2009 |
| 7532145 | High resolution and wide dynamic range integrator Integrators are electronic components used to condition received analog signals, for example prior to Analog to Digital Conversion. Wide dynamic range, high gain and fine resolution are required of integrators and Analog to Digital Converters in order to limit the e... | 05/12/2009 |
| 7525471 | Wide-input windowed nonlinear analog-to-digital converter for high-frequency digitally controlled SMPS In embodiments, a new analog-to-digital converter (ADC) architecture can be used with switch-mode power supplies (SMPS) operating at switching frequencies higher than 10 MHz. Analog-to-digital converter embodiments can achieve very low power consumption, fast conver... | 04/28/2009 |
| 7522084 | Cycle time to digital converter A cycle time to digital converter includes a dual delay lock loop, multi phase sampling detector and VDL sampling detector. The dual delay lock loop generates the first voltage corresponding to the first delay time and the second voltage corresponding to the second ... | 04/21/2009 |
| 7515084 | Analog to digital converter using asynchronous pulse technology A digital to analog converter includes a time encoder that converts an analog input signal into a asynchronous pulse sequence, a pulse asynchronous DeMUX circuit that converts the asynchronous pulse sequence into a parallel stream of pulse sequences at a relatively ... | 04/07/2009 |
| 7450049 | Digitization apparatus The digitization apparatus includes, as a main scale, a pulse delay circuit constituted by a plurality of delay units connected in series or in ring form, a latch/encoder, a circulation number counter, and a latch circuit, and includes, as a vernier, a reverse timin... | 11/11/2008 |
| 7427940 | Time-to-digital converter with non-inverting buffers, transmission gates and non-linearity corrector, SOC including such converter and method of phase detection for use in synthesizing a clock signal A time-to-digital converter (TDC), a system-on-chip including a TDC, a method of phase detection for use in synthesizing a clock signal and a non-linearity corrector for a TDC. In one embodiment, the TDC includes a chain of delay elements configured to receive a clo... | 09/23/2008 |
| 7425915 | Frequency modulation based flash ADC An analog-to-digital converter converts a frequency-modulated signal into a digital signal. The frequency-modulated signal is supplied to multiple comparators, such as low-pass filters, which determine whether the signal falls within their frequency ranges. The outp... | 09/16/2008 |
| 7423574 | Analog-to-digital converter with pulse delay circuit In a semiconductor-integrated A/D converter, a pulse delay circuit is provided with a plurality of delay units. The plurality of delay units each includes at least one logic gate and operates based on a level of an input signal. The pulse delay circuit is configured... | 09/09/2008 |
| 7388534 | Adaptive data acquisition for an imaging system An adaptive data acquisition circuit (26) includes an amplifier (14) for amplifying electrical pulses generated by a detector (12) responsive to energy incident at the detector. The adaptive data acquisition circuit also includes a counting circ... | 06/17/2008 |
| 7388530 | A/D-converter The invention relates to at least one self-oscillating loop (SOL) comprising at least one forward path (FP), at least one feedback path (FBP) wherein said at least one forward path (FP) comprises amplitude quantizing means (AQM) combined with time quantizing means (... | 06/17/2008 |
| 7376349 | Analog to digital converter systems and methods Systems and methods are disclosed herein to provide analog-to-digital converter techniques. For example, in accordance with an embodiment of the present invention, an analog-to-digital converter architecture is disclosed that utilizes optical techniques to convert a... | 05/20/2008 |
| 7355544 | TAD A/D converter in which pulse delay circuit is initialized prior to each conversion operation for deriving an output digital value In a TAD (Time Analog-to-Digital) type of A/D converter in which delay units of a pulse delay circuit successively transfer a pulse signal during each of successive measurement intervals, with each delay unit applying an amount of delay determined by an analog input... | 04/08/2008 |
| 7345614 | Analog to digital converter with a series of inverting elements An A/D converter has inverting elements and delay elements alternately disposed in series. Each inverting element receives an analog voltage signal as a power source and converts a pulse signal in an inversion operation time depending on the analog voltage signal. E... | 03/18/2008 |
| 7336213 | Polarity independent precision measurement of an input voltage signal Polarity independent precision measurement of an input voltage signal is accomplished using a voltage integrating circuit that receives a first positive reference voltage and the input voltage signal, wherein the first positive reference voltage is greater in magnit... | 02/26/2008 |
| 7336210 | Multichannel time encoding and decoding of a signal Analog signals can be fully encoded as an asynchronous time sequence generated by a time encoding machine. With knowledge of the parameters of the time encoding machine, the asynchronous time sequence can be decoded using a non-linear time decoding machine. Such a s... | 02/26/2008 |
| 7330144 | Analog-to-digital conversion method and analog to digital converter In an analog-to-digital converter, a generating unit executes analog-to-digital conversion of a first input signal and a second input signal based on an analog-to-digital conversion characteristic curve to generate first digital data and second digital data respecti... | 02/12/2008 |
| 7324035 | Amplifier with pulse coded output and remote signal reconstruction from the pulse output An amplifier-based system having pulsed output includes an amplifier for amplifying a time varying voltage signal to produce an output voltage signal. A voltage-to-current (V-I) converter converts the output voltage signal into a current signal. An output stage incl... | 01/29/2008 |
| 7324027 | Circuit and method for testing analog-digital converter A circuit for testing an analog-digital converter includes: a subtracter which receives a converted value having a plurality of bits outputted from the analog-digital converter and an expected value having a plurality of bits, the subtracter calculating a difference... | 01/29/2008 |
| 7321731 | Optical pulse position modulation discriminator Systems and methods are disclosed herein to provide various optical techniques. For example, in accordance with an embodiment of the present invention, a pulse position modulation discriminator architecture is disclosed for discriminating temporal positions of PPM-e... | 01/22/2008 |
| 7315270 | Differential delay-line analog-to-digital converter Differential delay-line analog-to-digital (A/D) converters for use in current and power sensing applications are provided. These A/D converters are well suited for a wide range of electronic applications, including over-load protection, current mode control, current... | 01/01/2008 |
| 7312738 | Apparatus and method for sigma delta signal treatment A sigma delta signal treating apparatus includes: (a) a low pass filtered signal path including at least one low pass filter; and (b) a quantization noise filtered signal path coupled with the low pass filtered signal path; the quantization noise filtered signal pat... | 12/25/2007 |
| 7292175 | Method of testing A/D converter circuit and A/D converter circuit For testing an A/D converter circuit including a pulse delay circuit constituted by a plurality of cascade-connected delay units, and an encoding circuit configured to count the number of the delay units through which the input pulse signal passes within a predeterm... | 11/06/2007 |
| 7292176 | Delay line, analog-to-digital converting device and load-sensing circuit using the same A delay line, an analog-to-digital converting device and a load-sensing circuit using the same are provided. The delay line comprises a delay-control terminal, a reset terminal, and n delay cells DCELLx (0 | 11/06/2007 |
| 7292645 | Binary transmitter and method of transmitting data in binary format The present invention provides a binary transmitter. In one embodiment, the binary transmitter includes a data coder that receives and encodes binary data to be transmitted and a modulator that employs the binary data directly to modulate a carrier wave to yield a s... | 11/06/2007 |
| 7286599 | Method and design of data communications transceiver for ultra wide band (UWB) operation in 3.1 GHz to 10.6 GHz frequency band An ultra wide band (UWB) communication system includes a channel filter bank to cover the 3.1 to 10.6 GHz band in channels having approximately equal bandwidth. A transmitter and a receiver may share the filter bank when the communication system is configured as a t... | 10/23/2007 |
| 7280450 | Method and device for detecting land pre-pits The address information of DVD-R or DVD-RW discs should be identified more accurately. Therefore, the detector is implemented with a sample/hold device for storing a reference value to be used for a sampling window. An optional integrator is used for comparing the i... | 10/09/2007 |
| 7268719 | Analogue to digital conversion device operable on different sampling clocks In an A/D conversion device, each delay unit in a pulse delay circuit has inverters INV of m×n stages (m, n are positive integers), a clock generator has m-delay lines, and each delay line has inverters INV of i×n stages (i=1, 2, . . . , and m). Those delay lines ... | 09/11/2007 |
| 7265700 | Method and apparatus for extracting individual pulses from an input signal Digital samples corresponding to a pulsed input signal are provided from an ADC to a memory for storage and to a pulse extraction circuit. The pulse extraction circuit detects the leading and trailing edges of pulses in the input signal. The digital samples are stor... | 09/04/2007 |
| 7248197 | A/D converter that is implemented using only digital circuit components and digital signal processing A TAD (time analog/digital) type of A/D converter has plural series-connected delay units each producing a delay in accordance with the level of a converter input voltage, with a first-stage delay unit receiving a pulse signal at commencement of each A/D conversion ... | 07/24/2007 |
