Patents by Inventor Dane R. Snow
Dane R. Snow 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: 10088861Abstract: Two transistors are connected between a power source and separate current references. The base of the first transistor is connected to a bias voltage, and the base of the second transistor is connected to the output of a differential amplifier. The amplifier inputs are connected to the nodes where the transistors are connected to the current references. The transistors and the current references may be of different sizes, such that the output voltage of the amplifier is a function of temperature and of the product of the ratios of the transistors and the current references. A number of switches may be employed such that, in alternative modes of operation, the amplifier is used to buffer the bias voltage, the offset of the amplifier, the output of the first transistor, and/or a stored sample of the temperature output voltage, which are combined to arrive at an adjusted temperature reading.Type: GrantFiled: March 22, 2017Date of Patent: October 2, 2018Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Shaun M. McCarthy, Mustansir Y. Mukadam, Stefan M. Wurster, Barry Thompson, Dane R. Snow
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Publication number: 20180143658Abstract: Two transistors are connected between a power source and separate current references. The base of the first transistor is connected to a bias voltage, and the base of the second transistor is connected to the output of a differential amplifier. The amplifier inputs are connected to the nodes where the transistors are connected to the current references. The transistors and the current references may be of different sizes, such that the output voltage of the amplifier is a function of temperature and of the product of the ratios of the transistors and the current references. A number of switches may be employed such that, in alternative modes of operation, the amplifier is used to buffer the bias voltage, the offset of the amplifier, the output of the first transistor, and/or a stored sample of the temperature output voltage, which are combined to arrive at an adjusted temperature reading.Type: ApplicationFiled: March 22, 2017Publication date: May 24, 2018Inventors: Shaun M. McCarthy, Mustansir Y. Mukadam, Stefan M. Wurster, Barry Thompson, Dane R. Snow
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Patent number: 7254116Abstract: A method of and apparatus for noise reduction for a transceiver transmitting frames over a transmission medium in a frame-based communications network. A transceiver transmit path and a transceiver receive path is provided. A blocking switch is located in the transceiver transmit path, the blocking switch allowing transmit signal propagation when enabled, while preventing both transmit signal propagation and circuit device noise coupling from the transceiver transmit path to the transceiver receive path when the blocking switch is disabled. The blocking switch is disabled when the transceiver transmit path is not transmitting frames over the frame-based communications network.Type: GrantFiled: April 4, 2001Date of Patent: August 7, 2007Assignee: Broadcom CorporationInventors: Timothy B. Robinson, Dane R. Snow, Jason Alexander Trachewsky, Larry C. Yamano
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Patent number: 7054279Abstract: A method of and apparatus for optimizing signal transformation from a twisted pair transmission line to a combination transmitter and receiver for a frame-based communications network, the transmitter having a transmit output pair port for transmitting signals onto the frame-based communications network over the twisted pair transmission line, the receiver having a receive input pair port for receiving signals from the frame-based communications network over the twisted pair transmission line. A transformer is coupled between the twisted pair transmission line and each of the transmit output pair port and the receive input pair port. The transformer has a coil across the twisted pair, a transmit coil across the transmit output pair port, and a receive coil across the receive input pair port. A transfer ratio between the transmit coil and the coil across the twisted pair is optimized for transmitting signals.Type: GrantFiled: April 4, 2001Date of Patent: May 30, 2006Assignee: Broadcom CorporationInventors: Timothy B. Robinson, Dane R. Snow, Jason Alexander Trachewsky
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Patent number: 6904133Abstract: A method and apparatus for coupling a voiceband modem circuit to a common phoneline connector, the common phoneline connection having a ring line connection and a tip line connection which couples a ring/tip line pair to a subscriber loop circuit, the voiceband modem circuit operating in a voiceband modem operating frequency band and having a voiceband modem interface ring line and a voiceband modem interface tip line. The voiceband modem interface ring line is coupled to the ring line and the voiceband modem interface tip line is coupled to the tip line connection by inserting, between the ring line connection and the voiceband modem interface ring line and between the tip line connection and the voiceband modem interface tip line, a series pair of inductors. A first inductor of the series pair has a low inductance and a high self-resonant frequency and a second inductor of the series pair has a high inductance and low self-resonant frequency.Type: GrantFiled: June 24, 2003Date of Patent: June 7, 2005Assignee: Broadcom CorporationInventors: Larry C. Yamano, Dane R. Snow, Jason Alexander Trachewsky, Ali Hariri
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Publication number: 20040052344Abstract: A method and apparatus for coupling a voiceband modem circuit to a common phoneline connector, the common phoneline connection having a ring line connection and a tip line connection which couples a ring/tip line pair to a subscriber loop circuit, the voiceband modem circuit operating in a voiceband modem operating frequency band and having a voiceband modem interface ring line and a voiceband modem interface tip line. The voiceband modem interface ring line is coupled to the ring line and the voiceband modem interface tip line is coupled to the tip line connection by inserting, between the ring line connection and the voiceband modem interface ring line and between the tip line connection and the voiceband modem interface tip line, a series pair of inductors. A first inductor of the series pair has a low inductance and a high self-resonant frequency and a second inductor of the series pair has a high inductance and low self-resonant frequency.Type: ApplicationFiled: June 24, 2003Publication date: March 18, 2004Applicant: Broadcom HomeNetworking, Inc.Inventors: Larry C. Yamano, Dane R. Snow, Jason Alexander Trachewsky, Ali Hariri
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Patent number: 6597768Abstract: A method and apparatus for coupling a voiceband modem circuit to a common phoneline connector, the common phoneline connection having a ring line connection and a tip line connection which couples a ring/tip line pair to a subscriber loop circuit, the voiceband modem circuit operating in a voiceband modem operating frequency band and having a voiceband modem interface ring line and a voiceband modem interface tip line. The voiceband modem interface ring line is coupled to the ring line and the voiceband modem interface tip line is coupled to the tip line connection by inserting, between the ring line connection and the voiceband modem interface ring line and between the tip line connection and the voiceband modem interface tip line, a series pair of inductors. A first inductor of the series pair has a low inductance and a high self-resonant frequency and a second inductor of the series pair has a high inductance and low self-resonant frequency.Type: GrantFiled: June 14, 2001Date of Patent: July 22, 2003Assignee: Broadcom Homenetworking, Inc.Inventors: Larry C. Yamano, Dane R. Snow, Jason Alexander Trachewsky, Ali Hariri
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Publication number: 20020145996Abstract: A method of and apparatus for optimizing signal transformation from a twisted pair transmission line to a combination transmitter and receiver for a frame-based communications network, the transmitter having a transmit output pair port for transmitting signals onto the frame-based communications network over the twisted pair transmission line, the receiver having a receive input pair port for receiving signals from the frame-based communications network over the twisted pair transmission line. A transformer is coupled between the twisted pair transmission line and each of the transmit output pair port and the receive input pair port. The transformer has a coil across the twisted pair, a transmit coil across the transmit output pair port, and a receive coil across the receive input pair port. A transfer ratio between the transmit coil and the coil across the twisted pair is optimized for transmitting signals.Type: ApplicationFiled: April 4, 2001Publication date: October 10, 2002Inventors: Timothy B. Robinson, Dane R. Snow, Jason Alexander Trachewsky
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Publication number: 20020064220Abstract: A method and apparatus for coupling a voiceband modem circuit to a common phoneline connector, the common phoneline connection having a ring line connection and a tip line connection which couples a ring/tip line pair to a subscriber loop circuit, the voiceband modem circuit operating in a voiceband modem operating frequency band and having a voiceband modem interface ring line and a voiceband modem interface tip line. The voiceband modem interface ring line is coupled to the ring line and the voiceband modem interface tip line is coupled to the tip line connection by inserting, between the ring line connection and the voiceband modem interface ring line and between the tip line connection and the voiceband modem interface tip line, a series pair of inductors. A first inductor of the series pair has a low inductance and a high self-resonant frequency and a second inductor of the series pair has a high inductance and low self-resonant frequency.Type: ApplicationFiled: June 14, 2001Publication date: May 30, 2002Inventors: Larry C. Yamano, Dane R. Snow, Jason Alexander Trachewsky, Ali Hariri
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Publication number: 20010046289Abstract: A method of and apparatus for noise reduction for a transceiver transmitting frames over a transmission medium in a frame-based communications network. A transceiver transmit path and a transceiver receive path is provided. A blocking switch is located in the transceiver transmit path, the blocking switch allowing transmit signal propagation when enabled, while preventing both transmit signal propagation and circuit device noise coupling from the transceiver transmit path to the transceiver receive path when the blocking switch is disabled. The blocking switch is disabled when the transceiver transmit path is not transmitting frames over the frame-based communications network.Type: ApplicationFiled: April 4, 2001Publication date: November 29, 2001Inventors: Timothy B. Robinson, Dane R. Snow, Jason Alexander Trachewsky, Larry C. Yamano
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Patent number: 5184128Abstract: An improved integrating type A/D converter has a set of analog switches and a control logic unit for selectively connecting a pair of input terminals for an unknown analog input voltage signal with a pair of input leads across a buffer and integrator in order to apply, first in an integrate phase, the analog input signal in a polarity direction that causes the integrator to ramp up in the same direction regardless of the polarity of the analog input signal, and then in a deintegrate phase, reference voltages are applied across the input leads in a fixed direction opposite to the applied input voltage such that a zero crossing signal is output by the comparator. The ramping-up and ramping-down of the integrator in the same direction eliminates rollover error in the A/D reading of inputs of different polarities but of the same magnitude. The invention is particularly useful for monolithic A/D converters using BiMOS technology.Type: GrantFiled: August 6, 1991Date of Patent: February 2, 1993Assignee: Harris CorporationInventor: Dane R. Snow
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Patent number: 4683528Abstract: A power supply regulator in which a control pulse is generated at a position in time which varies in accordance with the voltage or current supplied by the power supply. The control pulse can be fed back across an isolation boundary with a simple device such as a pulse transformer with little or no loss of accuracy. Such a control signal is particularly adaptable to varying the duty cycles of transistor switch drive signals for switched-mode power supplies.Type: GrantFiled: July 22, 1985Date of Patent: July 28, 1987Assignee: Intersil, Inc.Inventors: Dane R. Snow, David Bingham