Patents by Inventor Raymond William Hall
Raymond William Hall has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8810729Abstract: A method and apparatus for automatic compensation of insertion loss in signals transmitted over conductors is presented. The present invention is particularly applicable to the transmission of signals over long lengths of CAT-5 or similar twisted-pair cables. A reference signal having a known form and strength (e.g. a pulse signal) is provided to each pair of conductors carrying a component of a signal from a transmitter to a receiver. The receiver includes adjustable gain amplifiers for each conductor pair over which a component of the signal is transmitted. The gains of the amplifiers are initially set at an initial level (e.g., their maximum gain) to allow detection of the reference signal. Once the reference signal is detected in a conductor pair, the amplifier gains are adjusted such that the level of the reference signal is restored approximately to its original form and strength.Type: GrantFiled: December 11, 2012Date of Patent: August 19, 2014Assignee: RGB Systems, Inc.Inventors: Raymond William Hall, Donald E Parreco
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Publication number: 20140055680Abstract: A method and apparatus for automatic compensation of insertion loss in signals transmitted over conductors is presented. The present invention is particularly applicable to the transmission of signals over long lengths of CAT-5 or similar twisted-pair cables. A reference signal having a known form and strength (e.g. a pulse signal) is provided to each pair of conductors carrying a component of a signal from a transmitter to a receiver. The receiver includes adjustable gain amplifiers for each conductor pair over which a component of the signal is transmitted. The gains of the amplifiers are initially set at an initial level (e.g., their maximum gain) to allow detection of the reference signal. Once the reference signal is detected in a conductor pair, the amplifier gains are adjusted such that the level of the reference signal is restored approximately to its original form and strength.Type: ApplicationFiled: December 11, 2012Publication date: February 27, 2014Applicant: RGB SYSTEMS, INC.Inventors: RAYMOND WILLIAM HALL, DONALD E. PARRECO
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Patent number: 8634028Abstract: A feedback circuit for restoration of DC in electrical signals is presented. A sample pulse representing a DC portion of an electrical signal is generated. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the electrical signal during this DC portion. The offset voltage feeds back through a summing node to the electrical signal thereby restoring the video signal to the desired DC voltage level with respect to ground.Type: GrantFiled: March 12, 2012Date of Patent: January 21, 2014Assignee: RGB Systems, Inc.Inventors: Raymond William Hall, Donald E Parreco
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Patent number: 8330550Abstract: A method and apparatus for automatic compensation of insertion loss in video signals transmitted over conductors is presented. The present invention is particularly applicable to the transmission of video over long lengths of CAT-5 or similar twisted-pair cables. A reference signal having a known form and strength (e.g. a pulse signal) is provided to each pair of conductors carrying a component of a video signal from a transmitter to a receiver. The receiver includes adjustable gain amplifiers for each conductor pair over which a component of the video signal is transmitted. The gains of the amplifiers are initially set at an initial level (e.g., their maximum gain) to allow detection of the reference signal. Once the reference signal is detected in a conductor pair, the amplifier gains are adjusted such that the level of the reference signal is restored approximately to its original form and strength.Type: GrantFiled: June 23, 2006Date of Patent: December 11, 2012Assignee: RGB Systems, Inc.Inventors: Raymond William Hall, Donald E Parreco
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Patent number: 8289451Abstract: A method and apparatus for automatic reduction of noise in video signals transmitted over conductors is presented. The present invention provides an adjustable amount of noise filtering matched to the amount of gain provided by an adjustable gain amplifier to a received video signal. One or more stages of a multi-stage discrete gain amplifier is provided with a corresponding noise filter circuit. The filter circuit is matched to the frequency response of and the amount of gain provided by the discrete gain amplifier stage. When the amplifier stage is applied to the received signal, the corresponding noise filter for that stage is invoked as well. In that manner, the amount of noise filtering applied to a video signal automatically varies with the amount of amplification provided to that signal.Type: GrantFiled: September 30, 2010Date of Patent: October 16, 2012Assignee: RGB Systems, Inc.Inventor: Raymond William Hall
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Publication number: 20120194746Abstract: A feedback circuit for restoration of DC in electrical signals is presented. A sample pulse representing a DC portion of an electrical signal is generated. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the electrical signal during this DC portion. The offset voltage feeds back through a summing node to the electrical signal thereby restoring the video signal to the desired DC voltage level with respect to ground.Type: ApplicationFiled: March 12, 2012Publication date: August 2, 2012Applicant: RGB SYSTEMS, INC.Inventors: RAYMOND WILLIAM HALL, DONALD E. PARRECO
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Patent number: 8154664Abstract: A feedback circuit for restoration of DC in video signals is presented. A sample pulse representing the back porch of an incoming video signal is generated from the horizontal sync signal. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the output signal during this back porch period. The offset voltage feeds back through a summing node upstream of either the circuit causing the offset or an input amplifier thereby restoring the video signal to the desired DC voltage level with respect to ground.Type: GrantFiled: August 23, 2010Date of Patent: April 10, 2012Assignee: RGB Systems, Inc.Inventors: Raymond William Hall, Donald E. Parreco
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Publication number: 20110128447Abstract: A method and apparatus for automatic reduction of noise in video signals transmitted over conductors is presented. The present invention provides an adjustable amount of noise filtering matched to the amount of gain provided by an adjustable gain amplifier to a received video signal. One or more stages of a multi-stage discrete gain amplifier is provided with a corresponding noise filter circuit. The filter circuit is matched to the frequency response of and the amount of gain provided by the discrete gain amplifier stage. When the amplifier stage is applied to the received signal, the corresponding noise filter for that stage is invoked as well. In that manner, the amount of noise filtering applied to a video signal automatically varies with the amount of amplification provided to that signal.Type: ApplicationFiled: September 30, 2010Publication date: June 2, 2011Inventor: RAYMOND WILLIAM HALL
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Publication number: 20110069236Abstract: A feedback circuit for restoration of DC in video signals is presented. A sample pulse representing the back porch of an incoming video signal is generated from the horizontal sync signal. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the output signal during this back porch period. The offset voltage feeds back through a summing node upstream of either the circuit causing the offset or an input amplifier thereby restoring the video signal to the desired DC voltage level with respect to ground.Type: ApplicationFiled: August 23, 2010Publication date: March 24, 2011Inventors: Raymond William Hall, Donald E. Parreco
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Publication number: 20110063507Abstract: A video format identification system includes a master clock circuit which provides timing and counting signals, a synchronization activity detector operatively coupled to the master clock circuit, and a synchronization width qualifier configured to filter out noise or reference burst signals from showing up as sync signals. The system also includes a synchronization detector which regulates the rate of the incoming sync signal, a color burst sampler providing a window for sampling a reference color burst after the sync signal has occurred, and a color burst detector which looks for at least three transitions from a burst signal before it qualifies the as an appropriate reference color burst. A format sample timer generates sample clock signals. A format sample counter produces “take format” signals which are utilized by a set of format counter. The system further includes a video format identifier which enables a particular video format to be directed to a respective video connector.Type: ApplicationFiled: July 30, 2010Publication date: March 17, 2011Inventor: RAYMOND WILLIAM HALL
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Patent number: 7808557Abstract: A method and apparatus for automatic reduction of noise in video signals transmitted over conductors is presented. The present invention provides an adjustable amount of noise filtering matched to the amount of gain provided by an adjustable gain amplifier to a received video signal. One or more stages of a multi-stage discrete gain amplifier is provided with a corresponding noise filter circuit. The filter circuit is matched to the frequency response of and the amount of gain provided by the discrete gain amplifier stage. When the amplifier stage is applied to the received signal, the corresponding noise filter for that stage is invoked as well. In that manner, the amount of noise filtering applied to a video signal automatically varies with the amount of amplification provided to that signal.Type: GrantFiled: June 23, 2006Date of Patent: October 5, 2010Assignee: RGB Systems, Inc.Inventor: Raymond William Hall
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Patent number: 7796194Abstract: A video format identification system includes a master clock circuit which provides timing and counting signals, a synchronization activity detector operatively coupled to the master clock circuit, and a synchronization width qualifier configured to filter out noise or reference burst signals from showing up as sync signals. The system also includes a synchronization detector which regulates the rate of the incoming sync signal, a color burst sampler providing a window for sampling a reference color burst after the sync signal has occurred, and a color burst detector which looks for at least three transitions from a burst signal before it qualifies the as an appropriate reference color burst. A format sample timer generates sample clock signals. A format sample counter produces “take format” signals which are utilized by a set of format counter. The system further includes a video format identifier which enables a particular video format to be directed to a respective video connector.Type: GrantFiled: September 5, 2007Date of Patent: September 14, 2010Assignee: RGB Systems, Inc.Inventor: Raymond William Hall
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Patent number: 7787057Abstract: A feedback circuit for restoration of DC in video signals is presented. A sample pulse representing the back porch of an incoming video signal is generated from the horizontal sync signal. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the output signal during this back porch period. The offset voltage feeds back through a summing node upstream of either the circuit causing the offset or an input amplifier thereby restoring the video signal to the desired DC voltage level with respect to ground.Type: GrantFiled: August 22, 2006Date of Patent: August 31, 2010Assignee: RGB Systems, Inc.Inventors: Raymond William Hall, Donald E. Parreco
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Publication number: 20080106643Abstract: A system capable of transmitting and receiving high frequency video signals across various lengths of a twisted pair cable while maintaining video quality is presented. The system includes a transmitter and a receiver tandem coupled together over twisted pair cable. Each video component is mixed with a reference signal in the transmitter and driven differentially onto the twisted pair cable. Upon detection of a signal in the twisted pair cable, the receiver adjusts its internal gains until the known characteristic of the reference signal is achieved. The receiver than automatically adjusts the skew & DC offset. Thus, the receiver is able to automatically measure the degradation in video quality and appropriately compensate the video signals for the accumulated degradation caused primarily by the transmission between the transmitter and the receiver. The compensated video may subsequently be provided to a video display device.Type: ApplicationFiled: November 8, 2006Publication date: May 8, 2008Applicant: RGB SYSTEMS, INC.Inventors: RAYMOND WILLIAM HALL, GARY DEAN COLE, Donald E. Parreco
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Publication number: 20080062326Abstract: A feedback circuit for restoration of DC in video signals is presented. A sample pulse representing the back porch of an incoming video signal is generated from the horizontal sync signal. The sample pulse triggers a sample and hold circuit to acquire the correct offset voltage in the output signal during this back porch period. The offset voltage feeds back through a summing node upstream of either the circuit causing the offset or an input amplifier thereby restoring the video signal to the desired DC voltage level with respect to ground.Type: ApplicationFiled: August 22, 2006Publication date: March 13, 2008Applicant: RGB SYSTEMS, INC. (DBA EXTRON ELECTRONICS)Inventors: Raymond William Hall, Donald E. Parreco
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Publication number: 20070296868Abstract: A method and apparatus for automatic detection and compensation of skew between color components of a video source transmitted over a plurality of twisted pair conductors are presented. The system includes a receiver configured to receive separate components of a video source over each twisted pair conductor in a twisted pair cable. Each color component includes a reference signal. High speed comparators and samplers are used to detect the reference signal and measure the skew between the color components. Delay is applied to the first arriving color components to synchronize them in time with the last arriving color component. Skew measurement is continuous and adjustment is automatic while the receiver is receiving a video signal.Type: ApplicationFiled: June 23, 2006Publication date: December 27, 2007Applicant: RGB SYSTEMS, INC., (DBA EXTRON ELECTRONICS)Inventor: Raymond William Hall
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Publication number: 20070300284Abstract: A method and apparatus for automatic compensation of insertion loss in video signals transmitted over conductors is presented. The present invention is particularly applicable to the transmission of video over long lengths of CAT-5 or similar twisted-pair cables. A reference signal having a known form and strength (e.g. a pulse signal) is provided to each pair of conductors carrying a component of a video signal from a transmitter to a receiver. The receiver includes adjustable gain amplifiers for each conductor pair over which a component of the video signal is transmitted. The gains of the amplifiers are initially set at an initial level (e.g., their maximum gain) to allow detection of the reference signal. Once the reference signal is detected in a conductor pair, the amplifier gains are adjusted such that the level of the reference signal is restored approximately to its original form and strength.Type: ApplicationFiled: June 23, 2006Publication date: December 27, 2007Applicant: RGB SYSTEMS, INC., (DBA EXTRON ELECTRONICS)Inventors: Raymond William Hall, Donald E. Parreco
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Publication number: 20070296869Abstract: A method and apparatus for automatic reduction of noise in video signals transmitted over conductors is presented. The present invention provides an adjustable amount of noise filtering matched to the amount of gain provided by an adjustable gain amplifier to a received video signal. One or more stages of a multi-stage discrete gain amplifier is provided with a corresponding noise filter circuit. The filter circuit is matched to the frequency response of and the amount of gain provided by the discrete gain amplifier stage. When the amplifier stage is applied to the received signal, the corresponding noise filter for that stage is invoked as well. In that manner, the amount of noise filtering applied to a video signal automatically varies with the amount of amplification provided to that signal.Type: ApplicationFiled: June 23, 2006Publication date: December 27, 2007Applicant: RGB SYSTEMS, INC., (DBA EXTRON ELECTRONICS)Inventor: Raymond William Hall
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Patent number: 6112276Abstract: A modular disk memory apparatus provides a modularly expandable, multi-gigabyte auxiliary memory for a computer or other host electronic device, and includes multiple, parallel serial data channels to maximize bidirectional data transfer rates between the apparatus and the host device. Maximization of READ/WRITE data transfer rates within the apparatus is achieved by utilizing a large number of small hard disk drives, typically eight 2.5-inch drives on each of a plurality of Disk Storage Modules, each including a plug-in printed circuit board capable of holding two 5-1/4 inch drives, thereby increasing the maximum data transfer rate per unit volume of the modules by a factor of two.Type: GrantFiled: October 10, 1997Date of Patent: August 29, 2000Assignee: Signatec, Inc.Inventors: Tom Hunt, Raymond William Hall, David Thomas Ratter