Patents by Inventor Robert James Hatfield
Robert James Hatfield 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: 11956586Abstract: An audio apparatus is described for communicating with a user device, the audio apparatus comprising: a sensor configured to sense a user input and to generate an input signal representing the user input; and electronic circuitry operable to receive the input signal. The electronic circuitry is configured to: process the input signal, and generate a control signal for controlling at least one switch based on the input signal.Type: GrantFiled: May 14, 2020Date of Patent: April 9, 2024Assignee: Cirrus Logic Inc.Inventor: Robert James Hatfield
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Publication number: 20220321988Abstract: An audio apparatus is described for communicating with a user device, the audio apparatus comprising: a sensor configured to sense a user input and to generate an input signal representing the user input; and electronic circuitry operable to receive the input signal. The electronic circuitry is configured to: process the input signal, and generate a control signal for controlling at least one switch based on the input signal.Type: ApplicationFiled: May 14, 2020Publication date: October 6, 2022Applicant: Cirrus Logic International Semiconductor Ltd.Inventor: Robert James HATFIELD
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Patent number: 11335338Abstract: A speech recognition system comprises: an input, for receiving an input signal from at least one microphone; a first buffer, for storing the input signal; a noise reduction block, for receiving the input signal and generating a noise reduced input signal; a speech recognition engine, for receiving either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block; and a selection circuit for directing either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block to the speech recognition engine.Type: GrantFiled: September 27, 2019Date of Patent: May 17, 2022Assignee: Cirrus Logic, Inc.Inventors: John Paul Lesso, Robert James Hatfield
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Publication number: 20220101841Abstract: A speech recognition system comprises: an input, for receiving an input signal from at least one microphone; a first buffer, for storing the input signal; a noise reduction block, for receiving the input signal and generating a noise reduced input signal; a speech recognition engine, for receiving either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block; and a selection circuit for directing either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block to the speech recognition engine.Type: ApplicationFiled: December 13, 2021Publication date: March 31, 2022Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: John Paul LESSO, Robert James HATFIELD
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Patent number: 10755697Abstract: Received data representing speech is stored, and a trigger detection block detects a presence of data representing a trigger phrase in the received data. In response, a first part of the stored data representing at least a part of the trigger phrase is supplied to an adaptive speech enhancement block, which is trained on the first part of the stored data to derive adapted parameters for the speech enhancement block. A second part of the stored data, overlapping with the first part of the stored data, is supplied to the adaptive speech enhancement block operating with said adapted parameters, to form enhanced stored data. A second trigger phrase detection block detects the presence of data representing the trigger phrase in the enhanced stored data. In response, enhanced speech data are output from the speech enhancement block for further processing, such as speech recognition.Type: GrantFiled: April 24, 2019Date of Patent: August 25, 2020Assignee: Cirrus Logic, Inc.Inventors: Robert James Hatfield, Michael Page
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Patent number: 10691780Abstract: An electronic device, comprising one or more input devices, for receiving biometric input from a user and generating one or more biometric input signals; an applications processor; a mixer configurable by the applications processor to provide a first signal path between one or more of the input devices and the applications processor; and a biometric authentication module coupled to the one or more input devices via a second signal path that does not include the mixer, for performing authentication of at least one of the one or more biometric input signals.Type: GrantFiled: August 3, 2017Date of Patent: June 23, 2020Assignee: Cirrus Logic, Inc.Inventors: Sunil Saunders, Robert David Rand, Robert James Hatfield, John Laurence Pennock
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Publication number: 20200118557Abstract: A speech recognition system comprises: an input, for receiving an input signal from at least one microphone; a first buffer, for storing the input signal; a noise reduction block, for receiving the input signal and generating a noise reduced input signal; a speech recognition engine, for receiving either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block; and a selection circuit for directing either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block to the speech recognition engine.Type: ApplicationFiled: September 27, 2019Publication date: April 16, 2020Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: John Paul LESSO, Robert James HATFIELD
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Patent number: 10529356Abstract: A method for determining the presence of unwanted signal components in an acoustic signal, comprises: receiving a first microphone signal derived from an acoustic signal, applying the first microphone signal to a first signal processing path having a first transfer function to provide a first output, receiving a second microphone signal derived from the acoustic signal, applying the second microphone signal to a second signal processing path having a second transfer function to provide a second output, wherein the second transfer function has a different degree of linearity from the first transfer function, and determining the presence of unwanted signal components in the acoustic signal based on a comparison of the first output and the second output.Type: GrantFiled: May 15, 2018Date of Patent: January 7, 2020Assignee: Cirrus Logic, Inc.Inventor: Robert James Hatfield
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Publication number: 20190355380Abstract: A method for determining the presence of unwanted signal components in an acoustic signal, comprises: receiving a first microphone signal derived from an acoustic signal, applying the first microphone signal to a first signal processing path having a first transfer function to provide a first output, receiving a second microphone signal derived from the acoustic signal, applying the second microphone signal to a second signal processing path having a second transfer function to provide a second output, wherein the second transfer function has a different degree of linearity from the first transfer function, and determining the presence of unwanted signal components in the acoustic signal based on a comparison of the first output and the second output.Type: ApplicationFiled: May 15, 2018Publication date: November 21, 2019Applicant: Cirrus Logic International Semiconductor Ltd.Inventor: Robert James HATFIELD
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Patent number: 10431212Abstract: A speech recognition system comprises: an input, for receiving an input signal from at least one microphone; a first buffer, for storing the input signal; a noise reduction block, for receiving the input signal and generating a noise reduced input signal; a speech recognition engine, for receiving either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block; and a selection circuit for directing either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block to the speech recognition engine.Type: GrantFiled: June 5, 2017Date of Patent: October 1, 2019Assignee: Cirrus Logic, Inc.Inventors: John Paul Lesso, Robert James Hatfield
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Publication number: 20190251954Abstract: Received data representing speech is stored, and a trigger detection block detects a presence of data representing a trigger phrase in the received data. In response, a first part of the stored data representing at least a part of the trigger phrase is supplied to an adaptive speech enhancement block, which is trained on the first part of the stored data to derive adapted parameters for the speech enhancement block. A second part of the stored data, overlapping with the first part of the stored data, is supplied to the adaptive speech enhancement block operating with said adapted parameters, to form enhanced stored data. A second trigger phrase detection block detects the presence of data representing the trigger phrase in the enhanced stored data. In response, enhanced speech data are output from the speech enhancement block for further processing, such as speech recognition.Type: ApplicationFiled: April 24, 2019Publication date: August 15, 2019Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Robert James HATFIELD, Michael PAGE
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Patent number: 10319372Abstract: Received data representing speech is stored, and a trigger detection block detects a presence of data representing a trigger phrase in the received data. In response, a first part of the stored data representing at least a part of the trigger phrase is supplied to an adaptive speech enhancement block, which is trained on the first part of the stored data to derive adapted parameters for the speech enhancement block. A second part of the stored data, overlapping with the first part of the stored data, is supplied to the adaptive speech enhancement block operating with said adapted parameters, to form enhanced stored data. A second trigger phrase detection block detects the presence of data representing the trigger phrase in the enhanced stored data. In response, enhanced speech data are output from the speech enhancement block for further processing, such as speech recognition.Type: GrantFiled: August 28, 2017Date of Patent: June 11, 2019Assignee: Cirrus Logic, Inc.Inventors: Robert James Hatfield, Michael Page
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Publication number: 20180039769Abstract: An electronic device, comprising one or more input devices, for receiving biometric input from a user and generating one or more biometric input signals; an applications processor; a mixer configurable by the applications processor to provide a first signal path between one or more of the input devices and the applications processor; and a biometric authentication module coupled to the one or more input devices via a second signal path that does not include the mixer, for performing authentication of at least one of the one or more biometric input signals.Type: ApplicationFiled: August 3, 2017Publication date: February 8, 2018Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Sunil SAUNDERS, Robert David RAND, Robert James HATFIELD, John Laurence PENNOCK
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Publication number: 20170358294Abstract: Received data representing speech is stored, and a trigger detection block detects a presence of data representing a trigger phrase in the received data. In response, a first part of the stored data representing at least a part of the trigger phrase is supplied to an adaptive speech enhancement block, which is trained on the first part of the stored data to derive adapted parameters for the speech enhancement block. A second part of the stored data, overlapping with the first part of the stored data, is supplied to the adaptive speech enhancement block operating with said adapted parameters, to form enhanced stored data. A second trigger phrase detection block detects the presence of data representing the trigger phrase in the enhanced stored data. In response, enhanced speech data are output from the speech enhancement block for further processing, such as speech recognition.Type: ApplicationFiled: August 28, 2017Publication date: December 14, 2017Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Robert James HATFIELD, Michael PAGE
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Patent number: 9779726Abstract: Received data representing speech is stored, and a trigger detection block detects a presence of data representing a trigger phrase in the received data. In response, a first part of the stored data representing at least a part of the trigger phrase is supplied to an adaptive speech enhancement block, which is trained on the first part of the stored data to derive adapted parameters for the speech enhancement block. A second part of the stored data, overlapping with the first part of the stored data, is supplied to the adaptive speech enhancement block operating with said adapted parameters, to form enhanced stored data. A second trigger phrase detection block detects the presence of data representing the trigger phrase in the enhanced stored data. In response, enhanced speech data are output from the speech enhancement block for further processing, such as speech recognition.Type: GrantFiled: December 17, 2014Date of Patent: October 3, 2017Assignee: Cirrus Logic International Semiconductor Ltd.Inventors: Robert James Hatfield, Michael Page
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Publication number: 20170270920Abstract: A speech recognition system comprises: an input, for receiving an input signal from at least one microphone; a first buffer, for storing the input signal; a noise reduction block, for receiving the input signal and generating a noise reduced input signal; a speech recognition engine, for receiving either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block; and a selection circuit for directing either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block to the speech recognition engine.Type: ApplicationFiled: June 5, 2017Publication date: September 21, 2017Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: John Paul LESSO, Robert James HATFIELD
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Patent number: 9697831Abstract: A speech recognition system comprises: an input, for receiving an input signal from at least one microphone; a first buffer, for storing the input signal; a noise reduction block, for receiving the input signal and generating a noise reduced input signal; a speech recognition engine, for receiving either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block; and a selection circuit for directing either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block to the speech recognition engine.Type: GrantFiled: June 25, 2014Date of Patent: July 4, 2017Assignee: Cirrus Logic, Inc.Inventors: John Paul Lesso, Robert James Hatfield
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Publication number: 20160322045Abstract: Received data representing speech is stored, and a trigger detection block detects a presence of data representing a trigger phrase in the received data. In response, a first part of the stored data representing at least a part of the trigger phrase is supplied to an adaptive speech enhancement block, which is trained on the first part of the stored data to derive adapted parameters for the speech enhancement block. A second part of the stored data, overlapping with the first part of the stored data, is supplied to the adaptive speech enhancement block operating with said adapted parameters, to form enhanced stored data. A second trigger phrase detection block detects the presence of data representing the trigger phrase in the enhanced stored data. In response, enhanced speech data are output from the speech enhancement block for further processing, such as speech recognition.Type: ApplicationFiled: December 17, 2014Publication date: November 3, 2016Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Robert James HATFIELD, Michael PAGE
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Patent number: 9378176Abstract: The present invention relates to methods and apparatus for data transfer. A data interface is described with at least a first data terminal for either outputting or receiving a data signal. In bi-directional embodiments there may be one terminal for receiving data and one terminal for outputting data. A bit clock terminal outputs or receives a bit clock signal; and a frame clock terminal for outputs or receives a frame clock signal. Interface control circuitry is configurable to associate data outputted or received in each frame with time slots (1-8) of a predetermined number of bits (x, y, z) wherein the control circuitry is adapted such that the frequency of the bit clock signal can be changed at any time so as to vary the number of time slots in a frame.Type: GrantFiled: December 17, 2010Date of Patent: June 28, 2016Assignee: Cirrus Logic International Semiconductor Ltd.Inventors: Robert James Hatfield, Gordon Richard McLeod, John Laurence Pennock
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Publication number: 20150039303Abstract: A speech recognition system comprises: an input, for receiving an input signal from at least one microphone; a first buffer, for storing the input signal; a noise reduction block, for receiving the input signal and generating a noise reduced input signal; a speech recognition engine, for receiving either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block; and a selection circuit for directing either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block to the speech recognition engine.Type: ApplicationFiled: June 25, 2014Publication date: February 5, 2015Inventors: John Paul Lesso, Robert James Hatfield