Patents Assigned to Dobbs-Stanford Corporation
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Publication number: 20110050338Abstract: The invention is a power amplifier circuit for providing a signal acceptable for use in audio amplifiers or similar applications without requiring a stable power supply free from fluctuations. An alternating current power supply signal rectified to a direct current signal is processed by two voltage multipliers. A voltage divider establishes a unity gain level, and the variance from this voltage is squared by the first voltage multiplier. This squared voltage is then multiplied with a triangular wave signal to generate a modulated triangular wave signal. The modulated triangular wave signal and a signal to be amplified, typically an audio signal, are processed by an internal comparator to generate a pulse width modulated signal. This modulated signal is processed by a power transistor network and filter to provide an amplified signal to a load device.Type: ApplicationFiled: November 17, 2009Publication date: March 3, 2011Applicant: DOBBS-STANFORD CORPORATIONInventor: Kevin Scott Christian
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Patent number: 7619467Abstract: The invention is a power amplifier circuit for providing a signal acceptable for use in audio amplifiers or similar applications without requiring a stable power supply free from fluctuations. An alternating current power supply signal rectified to a direct current signal is processed by two voltage multipliers. A voltage divider establishes a unity gain level, and the variance from this voltage is squared by the first voltage multiplier. This squared voltage is then multiplied with a triangular wave signal to generate a modulated triangular wave signal. The modulated triangular wave signal and a signal to be amplified, typically an audio signal, are processed by an internal comparator to generate a pulse width modulated signal. This modulated signal is processed by a power transistor network and filter to provide an amplified signal to a load device.Type: GrantFiled: January 17, 2008Date of Patent: November 17, 2009Assignee: Dobbs-Stanford CorporationInventor: Kevin Scott Christian
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Publication number: 20080180167Abstract: The invention is a power amplifier circuit for providing a signal acceptable for use in audio amplifiers or similar applications without requiring a stable power supply free from fluctuations. An alternating current power supply signal rectified to a direct current signal is processed by two voltage multipliers. A voltage divider establishes a unity gain level, and the variance from this voltage is squared by the first voltage multiplier. This squared voltage is then multiplied with a triangular wave signal to generate a modulated triangular wave signal. The modulated triangular wave signal and a signal to be amplified, typically an audio signal, are processed by an internal comparator to generate a pulse width modulated signal. This modulated signal is processed by a power transistor network and filter to provide an amplified signal to a load device.Type: ApplicationFiled: January 17, 2008Publication date: July 31, 2008Applicant: DOBBS-STANFORD CORPORATIONInventor: Kevin Scott Christian
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Patent number: 7332959Abstract: The invention is a power amplifier circuit for providing a signal acceptable for use in audio amplifiers or similar applications without requiring a stable power supply free from fluctuation. An alternating current power supply signal rectified to a direct current signal is processed by two voltage multipliers. A voltage divider establishes a unity gain level, and the variance from this voltage is squared by the first voltage multiplier. This squared voltage is then multiplied with a triangular wave signal to generate a modulated triangular wave signal. The modulated triangular wave signal and a signal to be amplified, typically an audio signal, are processed by an internal comparator to generate a pulse width modulated signal. This modulated signal is processed by a power transistor network and filter to provide an amplified signal to a load device.Type: GrantFiled: July 26, 2004Date of Patent: February 19, 2008Assignee: Dobbs-Stanford CorporationInventor: Kevin Christian
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Publication number: 20060249522Abstract: A packaging assembly is provided for storing and merchandising electric components, such as electrical cables. Until now, cables and other electrical components have typically in disposable container, which were generally not reusable, and often require knives or tools to open, risking damage and injury. However, to combat problems associated with conventional devices and techniques, an easy-to-use reusable packaging assembly is employed. The packaging assembly utilizes a box and a lid that are coupled together with latch assemblies. Then, a sheath can slidably engage the box and lid to allow for, ease of marketing. The combination then allows for easy storage and mechanizing for cables that has not become available until now.Type: ApplicationFiled: May 6, 2005Publication date: November 9, 2006Applicant: Dobbs-Stanford CorporationInventor: Scott Ringo
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Patent number: 5566237Abstract: An audio selection circuit (10) having time selectable equalization, comprising a plurality of inputs (24, 26) for coupling the audio selection circuit to a plurality of audio signal sources, a variable equalization circuit (32) having an equalization input and an equalization output, the variable equalization circuit (32) providing variable attenuation in a plurality of frequency bands to an audio signal coupled to the equalization input, processing means (12) operatively coupled to the plurality of inputs (24, 26) and to the variable equalization circuit (32), memory means (12) operatively coupled to the processing means (12) and timebase means (14) operatively coupled to the processing means (12), the timebase means (14) enabling the processing means (12) to determine a time of day, wherein the processing means (12) is operative to couple one of the plurality of inputs (24, 26) to the equalization input and to vary the attenuation of the variable equalization circuit (32) when the time of day is equal to oType: GrantFiled: February 3, 1994Date of Patent: October 15, 1996Assignee: Dobbs-Stanford CorporationInventors: James F. Dobbs, Kevin S. Christian
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Patent number: D531798Type: GrantFiled: April 15, 2005Date of Patent: November 14, 2006Assignee: Dobbs-Stanford CorporationInventor: Scott Andrew Ringo
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Patent number: D552465Type: GrantFiled: April 15, 2005Date of Patent: October 9, 2007Assignee: Dobbs-Stanford CorporationInventor: Scott Andrew Ringo