Patents by Inventor Peter Charles Eastty

Peter Charles Eastty 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).

  • Patent number: 9203366
    Abstract: A method of generating a desired shelving filter for audio data, the desired shelving filter having a low-corner frequency U and a high-corner frequency f2, wherein the difference between the gain of the frequency response of the desired shelving filter at f2 and the gain of the frequency response of the desired shelving filter at U is substantially equal to a non-zero desired amount, the method comprising: determining an order for a first shelving filter of a first predetermined type, wherein the low-corner frequency of the first shelving filter is U and the high-corner frequency of the first shelving filter is f?, determining, for a second shelving filter of a second predetermined type and of a predetermined order m, a frequency fz for the low-corner frequency of the second shelving filter and a frequency Z4 for the high-corner frequency of the second shelving filter, where h is at least fi, f4 is greater than f3, and f4 is at most fi, and forming the desired shelving filter as a filter combination of the f
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: December 1, 2015
    Assignee: OXFORD DIGITAL LIMITED
    Inventor: Peter Charles Eastty
  • Patent number: 9025792
    Abstract: A computer-implemented method of determining a configuration for an audio processing operation, wherein the audio processing operation comprises a predetermined set of one or more audio processing sub-operations, each audio processing sub-operation being configurable with one or more respective configuration parameters, the method comprising: specifying the predetermined set of one or more audio processing sub-operations; specifying a target frequency response; and performing a convergent optimization process to determine a configuration for the audio processing operation that reduces a difference between the frequency response of the audio processing operation and the target frequency response, wherein the configuration comprises a respective value for each configuration parameter of each audio processing sub-operation.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: May 5, 2015
    Assignee: Oxford Digital Limited
    Inventor: Peter Charles Eastty
  • Patent number: 8804968
    Abstract: In an audio network system constructed from a main node and a plurality of satellite nodes each having a plurality of ports, the main node generates and transmits a main packet including audio signals of a plurality of channels. Each satellite node selects one of the plurality of ports in turn, and confirms whether the main packet arrives at the selected port every predetermined period or not. When the main packet arrives at the selected port every predetermined period, the main packet is received via the port by continuing selection of the port. In the case where reception of the main packet is lost, one is selected from the plurality of ports in turn, the operation to confirm arrival of the main packet is restarted, and another port at which the main packet arrives at the present stage is automatically found.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: August 12, 2014
    Assignee: Yamaha Corporation
    Inventors: Nathan Bentall, Peter Charles Eastty
  • Patent number: 8761208
    Abstract: In an audio network system constructed from a main node and a plurality of satellite nodes each having a plurality of ports, the main node generates and transmits a main packet including audio signals of a plurality of channels. Each satellite node selects one of the plurality of ports in turn, and confirms whether the main packet arrives at the selected port every predetermined period or not. When the main packet arrives at the selected port every predetermined period, the main packet is received via the port by continuing selection of the port. In the case where reception of the main packet is lost, one is selected from the plurality of ports in turn, the operation to confirm arrival of the main packet is restarted, and another port at which the main packet arrives at the present stage is automatically found.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: June 24, 2014
    Assignee: Yamaha Corporation
    Inventor: Peter Charles Eastty
  • Patent number: 8675649
    Abstract: In an audio network system constructed from a main node and a plurality of satellite nodes each having a plurality of ports, the main node generates and transmits a main packet including audio signals of a plurality of channels. Each satellite node selects one of the plurality of ports in turn, and confirms whether the main packet arrives at the selected port every predetermined period or not. When the main packet arrives at the selected port every predetermined period, the main packet is received via the port by continuing selection of the port. In the case where reception of the main packet is lost, one is selected from the plurality of ports in turn, the operation to confirm arrival of the main packet is restarted, and another port at which the main packet arrives at the present stage is automatically found.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: March 18, 2014
    Assignee: Yamaha Corporation
    Inventors: Nathan Bentall, Eamon Hughes, Peter Charles Eastty, Michael John Hunter Smith, Ken Iwayama, Peter Damien Thorpe, Masahiro Shimizu
  • Publication number: 20130114830
    Abstract: A computer-implemented method of determining a configuration for an audio processing operation, wherein the audio processing operation comprises a predetermined set of one or more audio processing sub-operations, each audio processing sub-operation being configurable with one or more respective configuration parameters, the method comprising: specifying the predetermined set of one or more audio processing sub-operations; specifying a target frequency response; and performing a convergent optimization process to determine a configuration for the audio processing operation that reduces a difference between the frequency response of the audio processing operation and the target frequency response, wherein the configuration comprises a respective value for each configuration parameter of each audio processing sub-operation.
    Type: Application
    Filed: October 7, 2010
    Publication date: May 9, 2013
    Applicant: OXFORD DIGITAL LIMITED
    Inventor: Peter Charles Eastty
  • Publication number: 20120177062
    Abstract: In an audio network system constructed from a main node and a plurality of satellite nodes each having a plurality of ports, the main node generates and transmits a main packet including audio signals of a plurality of channels. Each satellite node selects one of the plurality of ports in turn, and confirms whether the main packet arrives at the selected port every predetermined period or not. When the main packet arrives at the selected port every predetermined period, the main packet is received via the port by continuing selection of the port. In the case where reception of the main packet is lost, one is selected from the plurality of ports in turn, the operation to confirm arrival of the main packet is restarted, and another port at which the main packet arrives at the present stage is automatically found.
    Type: Application
    Filed: March 16, 2012
    Publication date: July 12, 2012
    Applicant: Yamaha Corporation
    Inventor: Peter Charles EASTTY
  • Publication number: 20120177203
    Abstract: In an audio network system constructed from a main node and a plurality of satellite nodes each having a plurality of ports, the main node generates and transmits a main packet including audio signals of a plurality of channels. Each satellite node selects one of the plurality of ports in turn, and confirms whether the main packet arrives at the selected port every predetermined period or not. When the main packet arrives at the selected port every predetermined period, the main packet is received via the port by continuing selection of the port. In the case where reception of the main packet is lost, one is selected from the plurality of ports in turn, the operation to confirm arrival of the main packet is restarted, and another port at which the main packet arrives at the present stage is automatically found.
    Type: Application
    Filed: March 16, 2012
    Publication date: July 12, 2012
    Applicant: Yamaha Corporation
    Inventors: Nathan Bentall, Peter Charles Eastty
  • Publication number: 20110096933
    Abstract: A method of generating a desired shelving filter for audio data, the desired shelving filter having a low-corner frequency U and a high-corner frequency f2, wherein the difference between the gain of the frequency response of the desired shelving filter at f2 and the gain of the frequency response of the desired shelving filter at U is substantially equal to a non-zero desired amount, the method comprising: determining an order for a first shelving filter of a first predetermined type, wherein the low-corner frequency of the first shelving filter is U and the high-corner frequency of the first shelving filter is f?, determining, for a second shelving filter of a second predetermined type and of a predetermined order m, a frequency fz for the low-corner frequency of the second shelving filter and a frequency Z4 for the high-corner frequency of the second shelving filter, where h is at least fi, f4 is greater than f3, and f4 is at most fi, and forming the desired shelving filter as a filter combination of the f
    Type: Application
    Filed: March 10, 2009
    Publication date: April 28, 2011
    Applicant: OXFORD DIGITAL LIMITED
    Inventor: Peter Charles Eastty
  • Patent number: 7904301
    Abstract: An original digital audio signal represents unimpaired audio information. The digital audio signal is compressed and encrypted without substantial impairment to produce a first audio signal. A second, unencrypted, audio signal is produced. The first and second audio signals are combined. Preferably the first audio signal is losslessy compressed. The second audio signal may be an impaired version of the original digital audio signal.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: March 8, 2011
    Assignee: Sony Europe Limited
    Inventors: Rodney Hugh Densham, William Edmund Cranstoun Kentish, Nicholas John Haynes, Peter Charles Eastty
  • Patent number: 7884745
    Abstract: An analog-to-digital conversion arrangement converting an input analog signal into an output digital representation. Two or more analog-to-digital conversion paths each applying a conversion mapping between input analog signal magnitudes and respective digital values generate an intermediate representation of the input analog signal, the conversion paths being operable to apply different respective conversion mappings. An output circuit combines the intermediate representations from at least two conversion paths to generate the output digital representation, the intermediate representations being combined according to a weighting dependent on the magnitude of the input analog signal. At least one of the conversion paths has an enhanced sensitivity mode appropriate to a range of magnitudes of the input signal that are below a threshold magnitude. Control logic inhibits operation in the enhanced sensitivity mode if the magnitude of the input analog signal exceeds the threshold magnitude.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: February 8, 2011
    Assignee: Sony United Kingdom Limited
    Inventors: Peter Charles Eastty, Nicholas George Tembe
  • Publication number: 20100128658
    Abstract: In an audio network system constructed from a main node and a plurality of satellite nodes each having a plurality of ports, the main node generates and transmits a main packet including audio signals of a plurality of channels. Each satellite node selects one of the plurality of ports in turn, and confirms whether the main packet arrives at the selected port every predetermined period or not. When the main packet arrives at the selected port every predetermined period, the main packet is received via the port by continuing selection of the port. In the case where reception of the main packet is lost, one is selected from the plurality of ports in turn, the operation to confirm arrival of the main packet is restarted, and another port at which the main packet arrives at the present stage is automatically found.
    Type: Application
    Filed: November 17, 2009
    Publication date: May 27, 2010
    Applicant: Yamaha Corporation
    Inventors: Nathan Bentall, Eamon Hughes, Peter Charles Eastty, Michael John Hunter Smith, Ken Iwayama, Peter Damien Thorpe, Masahiro Shimizu
  • Publication number: 20080272950
    Abstract: An analog-to-digital conversion arrangement converting an input analog signal into an output digital representation. Two or more analog-to-digital conversion paths each applying a conversion mapping between input analog signal magnitudes and respective digital values generate an intermediate representation of the input analog signal, the conversion paths being operable to apply different respective conversion mappings. An output circuit combines the intermediate representations from at least two conversion paths to generate the output digital representation, the intermediate representations being combined according to a weighting dependent on the magnitude of the input analog signal. At least one of the conversion paths has an enhanced sensitivity mode appropriate to a range of magnitudes of the input signal that are below a threshold magnitude. Control logic inhibits operation in the enhanced sensitivity mode if the magnitude of the input analog signal exceeds the threshold magnitude.
    Type: Application
    Filed: March 21, 2006
    Publication date: November 6, 2008
    Applicant: SONY UNITED KINGDOM LIMITED
    Inventors: Peter Charles Eastty, Nicholas George Tembe
  • Patent number: 7443385
    Abstract: Data processing apparatus comprises an array of user-operable controls, the controls being adjustable by movement of a user's hand while touching a control; a detector for detecting when a user's hand is touching a control; a display screen for displaying respective screen icons associated with the controls; and a display processor, responsive to a detection that a user's hand is touching one of the controls, for altering the screen icon associated with that control.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: October 28, 2008
    Assignee: Sony United Kingdom Limited
    Inventors: Peter Charles Eastty, Peter Damien Thorpe, Christopher Sleight
  • Patent number: 7092540
    Abstract: Process for accurately timed automatic alteration of electrical signals stored on a signal carrier (1) during the transmission of the original signal to a signal receiver (8, 10) in which process, for the exact dynamic alteration of the original signals, the original signals are first digitized and, provided with a time code, supplied to a computer (15) and stored in its memory unit, then the original signals digitally stored in the computer (15) are processed independently of the original recording in that the original signals digitally stored in the computer are graphically represented and checked for spots which are to be altered, and the correction signals corresponding to the desired alterations are selected and, provided with a time code, are entered in the computer (15) and then these correction signals are synchronously supplied to the setting members (20) during the transmission of the original signals from the signal carrier (1) to the signal receiver (8, 10).
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: August 15, 2006
    Assignees: Sony Corporation, Sony United Kingdom Limited
    Inventors: Peter Charles Eastty, William Edmund Cranstoun Kentish
  • Patent number: 7031479
    Abstract: Signal processing apparatus is described in which at least two sets of automated signal processing functions are controlled by stored automation commands, at times dependent upon at least two respective timecode signals which may each be associated with a respective source signal supplied to the signal processing apparatus.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: April 18, 2006
    Assignees: Sony Corporation, Sony United Kingdom Limited
    Inventors: Peter Charles Eastty, William Edmund Cranstoun Kentish
  • Patent number: 7003358
    Abstract: An audio signal processor which modifies audio signal components outside the conventional audio frequency band. The processor includes a Delta Sigma Modulator (DSM) that receives a non-interpolated digital audio signal sampled at a frequency of at least 198 kHz.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: February 21, 2006
    Assignee: Sony United Kingdom Limited
    Inventors: Peter Charles Eastty, Peter Damien Thorpe, Christopher Sleight
  • Patent number: 6970753
    Abstract: Apparatus for storing or transmitting a one-bit digital signal comprises an input inverter for inverting a subset of the data bits of an input one-bit digital signal, to generate a bit-inverted signal; a storage or transmission medium for storing or transmitting the bit-inverted signal; and an output inverter for inverting the subset of the data bits of the bit-inverted signal, to regenerate the input one-bit digital signal.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: November 29, 2005
    Assignees: Sony Corporation, Sony United Kingdom Limited
    Inventors: Peter Charles Eastty, Christopher Sleight, Peter Damien Thorpe
  • Patent number: 6744788
    Abstract: Data transmission apparatus for multiplexing one or more channel data streams of equal, predetermined, data rate into a transmission data stream comprises: means for generating a control data stream of the same data rate as the channel data rate, in which first periodically repeating portions of the control data stream provide a synchronisation signal and second periodically repeating portions of the control data stream provide identification data specifying information about the channel data streams with reference to a predetermined ordering of the channel data streams; and means for multiplexing the control data stream with the one or more channel data streams in a cyclic pattern of equally-sized data portions so that a data portion from the control data stream is followed by data portions from each of the channel data streams according to the predetermined ordering of channel data streams.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: June 1, 2004
    Assignee: Sony United Kingdom Limited
    Inventor: Peter Charles Eastty
  • Publication number: 20040017923
    Abstract: An audio signal processor modifies audio signal components over the whole of the frequency range DC to greater than 24 kHz. Preferably the signals are in 1-bit form with a sampling rate in the range about 198 kHz to about 2.8 MHz.
    Type: Application
    Filed: July 17, 2003
    Publication date: January 29, 2004
    Applicant: SONY UNITED KINGDOM LIMITED
    Inventors: Peter Charles Eastty, Peter Damien Thorpe, Christopher Sleight