Patents Assigned to Creative Technology, Ltd
  • Publication number: 20230007433
    Abstract: A headphone for spatial audio rendering includes a first database having an impulse response pair corresponding to a reference speaker location. A head sensor provides head orientation information to a second database having rotation filters, the filters corresponding to different azimuth and elevation positions relative to the reference speaker location. A digital signal processor combines the rotation filters with the impulse response pair to generate an output binaural audio signal to transducers of the headphone. Efficiencies in creating impulse response or HRTF databases are achieved by sampling the impulse response less frequently than in conventional methods. This sampling at coarser intervals reduces the number of data measurements required to generate a spherical grid and reduces the time involved in capturing the impulse responses. Impulse responses for data points falling between the sampled data points are generated by interpolating in the frequency domain.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 5, 2023
    Applicant: Creative Technology Ltd
    Inventors: Teck Chee LEE, Geith Mark Benjamin LESLIE, Mark Anthony DAVIES, Edwin TOMBOZA, Toh Onn Desmond HII
  • Publication number: 20230006785
    Abstract: Systems and techniques are provided to transmit data over a digital interface between a sender and a receiver. The digital interface is configured for transmitting a primary type of data as opposed to a secondary type of data. Nevertheless, systems and techniques are provided where the secondary type of data can be transmitted in the digital interface. As such, the primary and/or secondary types of data are transmitted from the sender to the receiver via the digital interface. The primary and secondary types of data may be different and/or unrelated and could be any type of data including, but not limited to, audio data, general data, and bulk data. Yet, the received primary and secondary types of data are still useful after the transmission.
    Type: Application
    Filed: November 20, 2020
    Publication date: January 5, 2023
    Applicant: Creative Technology Ltd
    Inventors: Teck Chee LEE, Toh Onn Desmond HII, Jenny Afliccion ESTEBAN
  • Publication number: 20220394418
    Abstract: An audio rendering system includes a processor that combines audio input signals with personalized spatial audio transfer functions preferably including room responses. The personalized spatial audio transfer functions are selected from a database having a plurality of candidate transfer function datasets derived from in-ear microphone measurements for a plurality of individuals. Alternatively, the personalized transfer function datasets are derived from actual in-ear measurements of the listener. Foreground and background positions are designated and matched with transfer function pairs from the selected dataset for the foreground and background direction and distance. Two channels of input audio such as voice and music are processed. When a voice communication such as a phone call is accepted the music being rendered is moved from a foreground to a background channel corresponding to a background spatial audio position using the personalized transfer functions.
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Applicant: Creative Technology Ltd
    Inventors: Wong Hoo SIM, Teck Chee LEE
  • Patent number: 11503423
    Abstract: An audio rendering system includes a processor that combines audio input signals with personalized spatial audio transfer functions having room responses. The personalized spatial audio transfer functions are selected from a database having a plurality of candidate transfer functions derived from in-ear microphone measurements for a plurality of individuals. Alternatively, the personalized transfer functions are derived from actual in-ear measurements of the listener. A room modification module allows the user to modify the personalized spatial audio transfer functions to substitute a different room or to modify the characteristics of the selected room without requiring additional in ear measurements. The module segments the selected transfer function into regions including one or more of direct; head and torso influenced; early reflection, and late reverberation regions. Extraction and modification operations are performed on one or more of the regions to alter the perceived sound.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: November 15, 2022
    Assignee: Creative Technology Ltd
    Inventors: Teck Chee Lee, Christopher Hummersone, Mark Anthony Davies, Toh Onn Desmond Hii
  • Patent number: 11468663
    Abstract: There is provided a method for generating a personalized Head Related Transfer Function (HRTF). The method can include capturing an image of an ear using a portable device, auto-scaling the captured image to determine physical geometries of the ear and obtaining a personalized HRTF based on the determined physical geometries of the ear.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: October 11, 2022
    Assignee: Creative Technology Ltd
    Inventors: Teck Chee Lee, Christopher Tjiongan, Desmond Hii, Geith Mark Benjamin Leslie
  • Patent number: 11445321
    Abstract: A headphone for spatial audio rendering includes a first database having an impulse response pair corresponding to a reference speaker location. A head sensor provides head orientation information to a second database having rotation filters, the filters corresponding to different azimuth and elevation positions relative to the reference speaker location. A digital signal processor combines the rotation filters with the impulse response pair to generate an output binaural audio signal to transducers of the headphone. Efficiencies in creating impulse response or HRTF databases are achieved by sampling the impulse response less frequently than in conventional methods. This sampling at coarser intervals reduces the number of data measurements required to generate a spherical grid and reduces the time involved in capturing the impulse responses. Impulse responses for data points falling between the sampled data points are generated by interpolating in the frequency domain.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: September 13, 2022
    Assignee: Creative Technology Ltd
    Inventors: Teck Chee Lee, Geith Mark Benjamin Leslie, Mark Anthony Davies, Edwin Tomboza, Toh Onn Desmond Hii
  • Publication number: 20220271717
    Abstract: A computer sound card includes a power supply noise isolation circuit for reducing ground plane noise generated during application of heavy electrical loads to the power supply, such as loads presented by computer GPUs. The power supply isolation circuit isolates the output ground from the ground presented from the power supply to the isolation circuit input. The isolation circuit in one embodiment includes switching circuitry and a transformer to reduce the power supply ripple noise that might otherwise be introduced by the power supply into an amplifier such as a microphone preamp. In some embodiments a differential amplifier stage is added to the output of the microphone preamp stage to further reduce noise, such as common mode noise.
    Type: Application
    Filed: July 7, 2020
    Publication date: August 25, 2022
    Applicant: Creative Technology Ltd
    Inventors: Yam Fei LIAN, Siew Ling LOKE
  • Patent number: 11418903
    Abstract: An audio rendering system includes a processor that combines audio input signals with personalized spatial audio transfer functions preferably including room responses. The personalized spatial audio transfer functions are selected from a database having a plurality of candidate transfer function datasets derived from in-ear microphone measurements for a plurality of individuals. Alternatively, the personalized transfer function datasets are derived from actual in-ear measurements of the listener. Foreground and background positions are designated and matched with transfer function pairs from the selected dataset for the foreground and background direction and distance. Two channels of input audio such as voice and music are processed. When a voice communication such as a phone call is accepted the music being rendered is moved from a foreground to a background channel corresponding to a background spatial audio position using the personalized transfer functions.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: August 16, 2022
    Assignee: Creative Technology Ltd
    Inventors: Wong Hoo Sim, Teck Chee Lee
  • Patent number: 11410358
    Abstract: A method for replicating a media stream generated by a transmitter device. The method can include communicating world context generated at the transmitter device and processing the received world context. The generated world context is associable with description generated based on an application being run at the transmitter device. The generated world context can be based upon to generate the media stream in a manner such that description of the generated media stream can be associated with the description generated based the application being run. Processing of the received world context can be in a manner so as to replicate the media stream generated at the transmitter device. Description of the replicated media stream can correspond to the description of the media stream at the transmitter device. The received world context can be further processed in a manner so as to change the description associable with the replicated media stream.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: August 9, 2022
    Assignee: Creative Technology Ltd
    Inventors: Teck Chee Lee, Darran Nathan, Shin Yee Chung, Yuan Yeow Leow
  • Publication number: 20220202190
    Abstract: A chair system including a main unit and an untethered chair is provided. The main unit includes a wireless transmitter, a subwoofer, an audio stream receiver and a processor. The untethered chair includes a plurality of speakers, a power source and a wireless receiver for receiving a processed audio stream from the main unit.
    Type: Application
    Filed: December 28, 2020
    Publication date: June 30, 2022
    Applicant: Creative Technology Ltd
    Inventors: Wong Hoo SIM, Kee Seng TAN, Yam Fei LIAN
  • Publication number: 20220206739
    Abstract: A method for muting and unmuting a microphone is provided. The method includes providing a processor, receiving an input microphone signal, measuring the input microphone signal for a loudness level at a sampling rate, calculating a mute threshold level, checking if the loudness level is higher than or equal to the mute threshold level, and resetting a mute delay timer upon determining that the loudness level is higher than or equal to the mute threshold level and obtaining the input microphone signal, or checking if the mute delay timer is running upon determining that the loudness level is not higher than or equal to the mute threshold level and attenuating the input microphone signal if the mute delay timer is not running or obtaining the input microphone signal if the mute delay timer is still running, and writing the input microphone signal or attenuated input microphone signal to an output buffer.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 30, 2022
    Applicant: Creative Technology Ltd
    Inventors: Kee Seng TAN, Luen Kai CHAN, Ariel Arellano DE CASTRO
  • Publication number: 20220141526
    Abstract: It is common that in an audio system, there are multiple data rates that need to be synchronized. For example, a sending device has its own crystal or clock, and a receiving device has another. Typical solutions introduce a lot of latency. According to various embodiments of the invention, a data management mechanism and technique are presented. The data management mechanism and technique pertains to managing media data such as those in an audio system, for example, managing the consumption of digital audio data in USB audio. The data management mechanism may include a dynamic buffer, which can be automatically controlled and adjusted to address issues (e.g., latency) in data consumption.
    Type: Application
    Filed: February 14, 2020
    Publication date: May 5, 2022
    Applicant: Creative Technology Ltd
    Inventor: Boon Liang Stanley LIM
  • Patent number: 11221820
    Abstract: Techniques are provided to transform external sound from an external position of an external audio space to an internal position of an internal audio space where the external sound would be heard naturally. The techniques involve capturing the external sound with a microphone and processing the captured external sound to appear as if it was captured at the internal position of the internal audio space, which may correspond to an output of a driver or a user's eardrum. Then the processed captured external sound may be conditioned for the individual user or further combined with conditioned audio content to create an augmented audio experience for the user. Any combination of the techniques can be implemented in real time.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: January 11, 2022
    Assignee: Creative Technology Ltd
    Inventors: Teck Chee Lee, Toh Onn Desmond Hii
  • Publication number: 20210406837
    Abstract: There is provided a method and system for managing electronic messages in a closed network. Both the method and system include determining a quantity of credits to be expended for a transmission of each electronic message from a device in the closed network; and deducting the quantity of credits from a sender's account at a central credit repository. Preferably, the quantity of credits to be expended is dependent on an identity of a recipient of the electronic message. The identity of the recipient of the electronic message may preferably be associated with the recipient's position in an organizational hierarchy.
    Type: Application
    Filed: September 7, 2021
    Publication date: December 30, 2021
    Applicant: Creative Technology Ltd
    Inventors: Wong Hoo SIM, Teck Seng Lee
  • Publication number: 20210407244
    Abstract: A jackpot machine with surround audio is provided. The jackpot machine includes a processor to process at least one audio to generate at least one 3D surround audio, a sending means to send the generated at least one 3D surround audio to a headphone worn by a player, and a display showing at least one graphical representation of a prize. The at least one graphical representation of the prize is associated with the at least one audio, and is perceived by the player to audibly and visually move around the player in accordance with the generated at least one 3D surround audio and the at least one graphical representation of the prize shown on the display respectively.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 30, 2021
    Applicant: Creative Technology Ltd
    Inventors: Wong Hoo SIM, Teck Chee LEE
  • Publication number: 20210329404
    Abstract: The present disclosure relates to a system and a processing method in association with the system for customizing audio experience. Customization of audio experience can be based on derivation of at least one customized audio response characteristic which can be applied to an audio device used by a person. The customized audio response characteristic(s) can be unique to the person.
    Type: Application
    Filed: June 28, 2021
    Publication date: October 21, 2021
    Applicant: Creative Technology Ltd
    Inventors: Teck Chee LEE, Christopher HUMMERSONE, Toh Onn Desmond HII
  • Patent number: 11138563
    Abstract: There is provided a method and system for managing electronic messages in a closed network. Both the method and system include determining a quantity of credits to be expended for a transmission of each electronic message from a device in the closed network; and deducting the quantity of credits from a sender's account at a central credit repository. Preferably, the quantity of credits to be expended is dependent on an identity of a recipient of the electronic message. The identity of the recipient of the electronic message may preferably be associated with the recipient's position in an organizational hierarchy.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: October 5, 2021
    Assignee: Creative Technology Ltd
    Inventors: Wong Hoo Sim, Teck Seng Lee
  • Publication number: 20210266696
    Abstract: A headphone for spatial audio rendering includes a first database having an impulse response pair corresponding to a reference speaker location. A head sensor provides head orientation information to a second database having rotation filters, the filters corresponding to different azimuth and elevation positions relative to the reference speaker location. A digital signal processor combines the rotation filters with the impulse response pair to generate an output binaural audio signal to transducers of the headphone. Efficiencies in creating impulse response or HRTF databases are achieved by sampling the impulse response less frequently than in conventional methods. This sampling at coarser intervals reduces the number of data measurements required to generate a spherical grid and reduces the time involved in capturing the impulse responses. Impulse responses for data points falling between the sampled data points are generated by interpolating in the frequency domain.
    Type: Application
    Filed: May 10, 2021
    Publication date: August 26, 2021
    Applicant: Creative Technology Ltd
    Inventors: Teck Chee LEE, Geith Mark Benjamin LESLIE, Mark Anthony DAVIES, Edwin TOMBOZA, Toh Onn Desmond HII
  • Patent number: 11089399
    Abstract: In accordance with the present invention, an ear tip for increasing mid-range frequency perception of an earpiece is provided. The ear tip includes a hollow main body having a first end defining a first opening and a second end defining a second opening for coupling to a coupling portion of a housing of the earpiece, and a peripheral portion integrally coupled to an outer surface of the first opening and shaped to conform to a surface of an ear canal. The peripheral portion has an outer edge with a plurality of wedge-shaped apertures formed integrally and spaced around the outer edge. The second opening and/or the coupling portion of the housing are adapted to be acoustically coupled with each other.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: August 10, 2021
    Assignee: Creative Technology Ltd
    Inventors: Woon Pheng Tan, Long Chye Low, Choon Kiat Teh
  • Publication number: 20210243516
    Abstract: In accordance with the present invention, an ear tip for increasing mid-range frequency perception of an earpiece is provided. The ear tip includes a hollow main body having a first end defining a first opening and a second end defining a second opening for coupling to a coupling portion of a housing of the earpiece, and a peripheral portion integrally coupled to an outer surface of the first opening and shaped to conform to a surface of an ear canal. The peripheral portion has an outer edge with a plurality of wedge-shaped apertures formed integrally and spaced around the outer edge. The second opening and/or the coupling portion of the housing are adapted to be acoustically coupled with each other.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 5, 2021
    Applicant: Creative Technology Ltd
    Inventors: Woon Pheng Tan, Long Chye Low, Choon Kiat Teh