51
Kelly H McClure, Gabriel Mouchawar: Efficient generation of sensing signals in an implantable medical device such as a pacemaker or ICD. Pacesetter, August 14, 2001: US06275734 (80 worldwide citation)

An implantable cardiac device such as a pacemaker or an implantable cardioverter defibrillator (ICD) that stores a broad band electrogram signal in response to the detecting of a particular cardiac event. The system includes an external programmer which is capable of accessing the stored electrogram ...


52
Angi Ye, C Jim Li: Dataform reader utilizing hand jittering compensation method. Telxon Corporation, Watts Hoffmann Fisher & Heinke Co, December 28, 1999: US06006990 (79 worldwide citation)

A imaging based dataform reader utilizes a method of compensating for image offset between consecutive image fields comprising an interlaced image frame. The method includes determination of a disparity vector corresponding to the direction and magnitude of the offset between portions of successive ...


53
Maurice Georges Bellanger, Georges Bonnerot, Michel Coudreuse: Arrangement for processing auxiliary signals in a frequency multiplex transmission system. Telecommunications Radioelectriques et Telephoniques T R T, Frank R Trifari, Henry I Steckler, July 18, 1978: US04101738 (77 worldwide citation)

A circuit for converting into an FDM format spatially separated signalling signals and pilot signals, comprises a digital filter bank for converting the signals into the FDM format. A receiver for separating the signalling signals and pilot signals from the FDM signal comprises another digital filte ...


54
David Lipschutz: Delay interpolator for digital phased array ultrasound beamformers. Hewlett Packard Company, September 6, 1994: US05345426 (76 worldwide citation)

A delay interpolator for use in each channel of a digital ultrasound beamformer includes an FIR digital filter that is responsive to delay control information for delaying digital samples of the received beam by different delays that are quantized in increments less than the sampling period and a co ...


55
Jeffrey H Price, David A Gough: Method and means of least squares designed filters for image segmentation in scanning cytometry. Jeffrey H Price, Gray Cary Ware Freidenrich, August 4, 1998: US05790692 (76 worldwide citation)

In an image segmentation system that processes image objects by digital filtration, a digital filter is defined. The digital filter includes a neighborhood operator for processing intensity values of neighborhoods of pixels in a pixel array. A first pixel array is received defining a pixelated image ...


56
Michael Sidman: Adaptive misposition correcting method and apparatus for magnetic disk servo system. Digital Equipment Corporation, Cesari and McKenna, August 20, 1985: US04536809 (72 worldwide citation)

A misposition correction system for correcting misposition errors due to spindle runout and other slowly varying errors in a servo positioning system of a magnetic disk storage device. The system includes means for dynamically measuring misposition error with respect to a data track centerline using ...


57
Adrian B Early: Chopper stabilized delta-sigma analog-to-digital converter. Crystal Semiconductor, Gregory M Howison, July 3, 1990: US04939516 (72 worldwide citation)

A chopper stabilized analog-to-digital converter includes an analog modulator (10) and a digital filter (12). The analog modulator (10) is comprised of two integrators (20) and (22). The first integrator (20) is a chopper stabilized integrator which is comprised of a chopper stabilized differential ...


58
Jingfeng Liu, Haotian Zhang, Hongwei Song: Systems and methods for semi-independent loop processing. LSI Corporation, Hamilton DeSanctis & Cha, August 7, 2012: US08237597 (70 worldwide citation)

Various embodiments of the present invention provide systems and methods for data processing. For example, a data processing circuit is discussed that includes an analog to digital converter circuit, a digital filter circuit, a data detector circuit, a mimic filter circuit, and a sample clock genera ...


59
Ka Yin Leung: Digital filter with decimated frequency response. Crystal Semiconductor, Gregory M Howison, J P Violette, December 9, 1997: US05696708 (70 worldwide citation)

A method for changing the frequency of a low-pass Finite Impulse Response (FIR) filter with a fixed frequency clock utilizes a decimation-by-coefficient technique. The decimation-by-coefficient method utilizes a single set of coefficients that are stored in a coefficient Read Only Memory (ROM) (64). ...


60
Croisier Alain, Esteban Daniel J, Levilion Marc E, Riso Vladimir: Digital filter for pcm encoded signals. International Business Machines Corporation, December 4, 1973: US3777130 (70 worldwide citation)

A digital filter either of a recursive or transversal type responsive to successive digitally encoded analog signal samples of m bits each. The filter comprises an accumulator for multiplying and summing a weighted hybrid value obtained from a memory medium addressed by a selected one of the m bits ...



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