Patents by Inventor Taiyi Cheng
Taiyi Cheng 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: 10310670Abstract: Disclosed is a system and method for a capacitive sensing device. The method includes transmitting a stimulation signal to a driving channel of the capacitive sensing device. The stimulation signal includes a plurality of sub-stimulation signals. Each of the sub-stimulation signals is characterized by an amplitude and a frequency. The frequencies of the sub-stimulation signals are orthogonal. The method further includes receiving a charge signal from a sensing channel of the capacitive sensing device. The charge signal is generated from the stimulation signal through a capacitance between the driving channel and the sensing channel. The method further includes detecting, from the charge signal, a plurality of sub-charge signal amplitudes at the frequencies of the sub-stimulation signals, and reporting a value about the capacitance from the sub-charge signal amplitudes. The method benefits the capacitive sensing device for increased noise immunity, reduced dynamic range, and reduced power consumption.Type: GrantFiled: January 16, 2015Date of Patent: June 4, 2019Assignee: SILEAD INC.Inventor: Taiyi Cheng
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Patent number: 10222919Abstract: Disclosed are a capacitive touch screen and a single layer wiring electrode array. The single layer wiring electrode array includes capacitive regions and wiring regions located on one plane. Wires in the wiring regions are zigzag-shaped or wave-shaped. The capacitive touch screen includes a substrate; a single layer wiring electrode array disposed over the substrate, wherein the single layer wiring electrode array includes capacitive regions and wiring regions located on one plane and wires in the wiring region are zigzag-shaped or wave-shaped; and control ports for connecting to one or more integrated circuits, wherein the wires in the wiring regions are connected to the control ports respectively. The single layer wiring electrode array and the capacitive touch screen lower the fabrication cost and improve the display effects.Type: GrantFiled: May 18, 2017Date of Patent: March 5, 2019Assignee: SILEAD INC.Inventors: Taiyi Cheng, Tianming Zhao, Hao Tang
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Patent number: 10121045Abstract: A fingerprint sensing device comprises a substrate and an array of sensor cells formed over the substrate. The sensor cells are divided into multiple groups. Each group is associated with a group-identifiable signal. The sensor cells in each group are configured to transmit the group-identifiable signal of the respective group and are further configured to simultaneously receive the group-identifiable signals transmitted by the sensor cells in other groups. The group-identifiable signals are orthogonal with respect to each other.Type: GrantFiled: June 6, 2016Date of Patent: November 6, 2018Assignee: SILEAD INC.Inventor: Taiyi Cheng
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Patent number: 9922230Abstract: A fingerprint information detection circuit comprises an amplification unit, a source follower unit, a reset unit, and a feedback unit. The amplification unit is coupled to the source follower unit. The reset unit is coupled to both the feedback unit and the amplification unit. The feedback unit and the amplification unit are coupled. The reset unit includes a first transistor and a reset transistor, wherein source and drain electrodes of the first transistor are coupled, wherein one of source and drain electrodes of the reset transistor is coupled to the source and drain electrodes of the first transistor.Type: GrantFiled: December 19, 2016Date of Patent: March 20, 2018Assignee: SILEAD, INC.Inventors: Taiyi Cheng, Xianggui Zhao
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Publication number: 20180011599Abstract: Disclosed is a system and method for a capacitive sensing device. The method includes transmitting a stimulation signal to a driving channel of the capacitive sensing device. The stimulation signal includes a plurality of sub-stimulation signals. Each of the sub-stimulation signals is characterized by an amplitude and a frequency. The frequencies of the sub-stimulation signals are orthogonal. The method further includes receiving a charge signal from a sensing channel of the capacitive sensing device. The charge signal is generated from the stimulation signal through a capacitance between the driving channel and the sensing channel. The method further includes detecting, from the charge signal, a plurality of sub-charge signal amplitudes at the frequencies of the sub-stimulation signals, and reporting a value about the capacitance from the sub-charge signal amplitudes. The method benefits the capacitive sensing device for increased noise immunity, reduced dynamic range, and reduced power consumption.Type: ApplicationFiled: January 16, 2015Publication date: January 11, 2018Applicant: Silead (Cayman) Inc.Inventor: TAIYI CHENG
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Publication number: 20170330011Abstract: A fingerprint sensing device comprises a substrate and an array of sensor cells formed over the substrate. The sensor cells are divided into multiple groups. Each group is associated with a group-identifiable signal. The sensor cells in each group are configured to transmit the group-identifiable signal of the respective group and are further configured to simultaneously receive the group-identifiable signals transmitted by the sensor cells in other groups. The group-identifiable signals are orthogonal with respect to each other.Type: ApplicationFiled: June 6, 2016Publication date: November 16, 2017Inventor: Taiyi Cheng
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Publication number: 20170308205Abstract: Disclosed are a capacitive touch screen and a single layer wiring electrode array. The single layer wiring electrode array includes capacitive regions and wiring regions located on one plane. Wires in the wiring regions are zigzag-shaped or wave-shaped. The capacitive touch screen includes a substrate; a single layer wiring electrode array disposed over the substrate, wherein the single layer wiring electrode array includes capacitive regions and wiring regions located on one plane and wires in the wiring region are zigzag-shaped or wave-shaped; and control ports for connecting to one or more integrated circuits, wherein the wires in the wiring regions are connected to the control ports respectively. The single layer wiring electrode array and the capacitive touch screen lower the fabrication cost and improve the display effects.Type: ApplicationFiled: May 18, 2017Publication date: October 26, 2017Inventors: Taiyi Cheng, Tianming Zhao, Hao Tang
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Patent number: 9678610Abstract: Disclosed are a capacitive touch screen and a single layer wiring electrode array. The single layer wiring electrode array includes capacitive regions and wiring regions located on one plane. Wires in the wiring regions are zigzag-shaped or wave-shaped. The capacitive touch screen includes a substrate; a single layer wiring electrode array disposed over the substrate, wherein the single layer wiring electrode array includes capacitive regions and wiring regions located on one plane and wires in the wiring region are zigzag-shaped or wave-shaped; and control ports for connecting to one or more integrated circuits, wherein the wires in the wiring regions are connected to the control ports respectively. The single layer wiring electrode array and the capacitive touch screen lower the fabrication cost and improve the display effects.Type: GrantFiled: July 17, 2013Date of Patent: June 13, 2017Assignee: Silead Inc.Inventors: Taiyi Cheng, Tianming Zhao, Hao Tang
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Publication number: 20170098111Abstract: A fingerprint information detection circuit comprises an amplification unit, a source follower unit, a reset unit, and a feedback unit. The amplification unit is coupled to the source follower unit. The reset unit is coupled to both the feedback unit and the amplification unit. The feedback unit and the amplification unit are coupled. The reset unit includes a first transistor and a reset transistor, wherein source and drain electrodes of the first transistor are coupled, wherein one of source and drain electrodes of the reset transistor is coupled to the source and drain electrodes of the first transistor.Type: ApplicationFiled: December 19, 2016Publication date: April 6, 2017Inventors: TAIYI CHENG, XIANGGUI ZHAO
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Patent number: 9542587Abstract: The present invention relates to a chip design and discloses a fingerprint information detection circuit.Type: GrantFiled: April 29, 2014Date of Patent: January 10, 2017Assignee: Silead, Inc.Inventors: Taiyi Cheng, Xianggui Zhao
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Publication number: 20160275331Abstract: The present invention relates to a chip design and discloses a fingerprint information detection circuit.Type: ApplicationFiled: April 29, 2014Publication date: September 22, 2016Inventors: TAIYI CHENG, XIANGGUI ZHAO
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Patent number: 9286900Abstract: An audio codec in a baseband processor may be utilized for mixing audio signals received at a plurality of data sampling rates. The mixed audio signals may be up sampled to a very large sampling rate, and then down sampled to a specified sampling rate that is compatible with a Bluetooth-enabled device by utilizing an interpolator in the audio codec. The down-sampled signals may be communicated to Bluetooth-enabled devices, such as Bluetooth headsets, or Bluetooth-enabled devices with a USB interface. The interpolator may be a linear interpolator for which the audio codec may enable generation of triggering and/or coefficient signals based on the specified output sampling rate. An interpolation coefficient may be generated based on a base value associated with the specified output sampling rate. The audio codec may enable selecting the specified output sampling rate from a plurality of rates.Type: GrantFiled: March 21, 2011Date of Patent: March 15, 2016Assignee: Broadcom CorporationInventors: Hongwei Kong, Nelson Sollenberger, Li Fung Chang, Claude Hayek, Taiyi Cheng
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Publication number: 20150177878Abstract: Disclosed are a capacitive touch screen and a single layer wiring electrode array. The single layer wiring electrode array includes capacitive regions and wiring regions located on one plane. Wires in the wiring regions are zigzag-shaped or wave-shaped. The capacitive touch screen includes a substrate; a single layer wiring electrode array disposed over the substrate, wherein the single layer wiring electrode array includes capacitive regions and wiring regions located on one plane and wires in the wiring region are zigzag-shaped or wave-shaped; and control ports for connecting to one or more integrated circuits, wherein the wires in the wiring regions are connected to the control ports respectively. The single layer wiring electrode array and the capacitive touch screen lower the fabrication cost and improve the display effects.Type: ApplicationFiled: July 17, 2013Publication date: June 25, 2015Applicant: Silead Inc.Inventors: Taiyi Cheng, Tianming Zhao, Hao Tang
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Patent number: 8326640Abstract: Aspects of a method and system for multi-band amplitude estimation and gain control in an audio CODEC are provided. In this regard, an audio signal may be filtered and delayed to generate one or more sub-band signals, a gain may be applied to each sub-band signal to generate one or more level adjusted sub-band signals, and the one or more level adjusted signals may be added to a delayed version of the audio signal. The gain applied to a particular one of the one or more sub-band signals may be controlled based on a detected amplitude of a summed signal derived by summing the particular one of the one or more sub-band signals and a corresponding one of the one or more level-adjusted sub-band signals.Type: GrantFiled: October 9, 2008Date of Patent: December 4, 2012Assignee: Broadcom CorporationInventors: Hongwei Kong, Taiyi Cheng
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Publication number: 20120250877Abstract: A central audio hub, comprising an audio switch, a bus matrix, and an audio buffer, is triggered to read audio samples of an audio stream from the audio buffer. The central audio hub routes the audio samples via the bus matrix to one or more surrounding audio modules such as an audio codec and an audio interface communicatively coupled to the central audio hub. The audio stream may be directly from an external application processor or from an external DDR. With the audio stream from the DDR, a DMA controller may fetch the audio samples from the DDR in response to a request received from the audio buffer, and store the fetched audio samples into the audio buffer for routing. The audio switch may be triggered at a determined sampling rate to read the audio samples from the audio buffer utilizing a determined sample format, and to route the audio samples to the surrounding audio modules.Type: ApplicationFiled: March 31, 2011Publication date: October 4, 2012Inventors: Taiyi Cheng, Hongwei Kong, Nelson Sollenberger, Mark Fullerton, Chin Sieh Lee, Timothy Pong, Yafang Feng, Claire Marie Suzanne Simeon, Michael Liu, Kenneth Ma, Chaoyang Zhao
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Method and system for programmable breakpoints in an integrated embedded image and video accelerator
Patent number: 8238415Abstract: A method and system for programmable breakpoints in an integrated embedded image and video accelerator are described. Aspects of the system may include circuitry that enables generation of control signals for pipeline processing of video data within a single chip by at least selecting a target location of the video data and generating an interrupt at a time instant corresponding to the pipeline processing of the target location. The system may enable programmable breakpoints to be set and/or triggered based on policies determined in executable software. The ability to set programmable breakpoints may enable flexible utilization of system memory resources.Type: GrantFiled: February 14, 2006Date of Patent: August 7, 2012Assignee: Broadcom CorporationInventors: Taiyi Cheng, Mark Hahm -
Patent number: 8068681Abstract: A method and system for pipelined processing in an integrated embedded image and video accelerator is described. Aspects of a system for pipelined processing in an integrated embedded image and video accelerator may include circuitry that enables pipeline processing of video data within a single chip, wherein the pipeline processing may further include decoding of a block of video data while simultaneously inverse transforming a previously decoded block of video data. Aspects of the system may also include circuitry that enables transformation, within the single chip, of a block of said video data while simultaneously encoding, within said single chip, a previously transformed block of video data.Type: GrantFiled: July 20, 2010Date of Patent: November 29, 2011Assignee: Broadcom CorporationInventors: Taiyi Cheng, Mark Hahm, Li Fung Chang
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Publication number: 20110182444Abstract: An audio codec in a baseband processor may be utilized for mixing audio signals received at a plurality of data sampling rates. The mixed audio signals may be up sampled to a very large sampling rate, and then down sampled to a specified sampling rate that is compatible with a Bluetooth-enabled device by utilizing an interpolator in the audio codec. The down-sampled signals may be communicated to Bluetooth-enabled devices, such as Bluetooth headsets, or Bluetooth-enabled devices with a USB interface. The interpolator may be a linear interpolator for which the audio codec may enable generation of triggering and/or coefficient signals based on the specified output sampling rate. An interpolation coefficient may be generated based on a base value associated with the specified output sampling rate. The audio codec may enable selecting the specified output sampling rate from a plurality of rates.Type: ApplicationFiled: March 21, 2011Publication date: July 28, 2011Inventors: Hongwei Kong, Nelson Sollenberger, Li Fung Chang, Claude Hayek, Taiyi Cheng
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Patent number: 7912728Abstract: An audio codec in a baseband processor may be utilized for mixing audio signals received at a plurality of data sampling rates. The mixed audio signals may be up sampled to a very large sampling rate, and then down sampled to a specified sampling rate that is compatible with a Bluetooth-enabled device by utilizing an interpolator in the audio codec. The down-sampled signals may be communicated to Bluetooth-enabled devices, such as Bluetooth headsets, or Bluetooth-enabled devices with a USB interface. The interpolator may be a linear interpolator for which the audio codec may enable generation of triggering and/or coefficient signals based on the specified output sampling rate. An interpolation coefficient may be generated based on a base value associated with the specified output sampling rate. The audio codec may enable selecting the specified output sampling rate from a plurality of rates.Type: GrantFiled: November 30, 2006Date of Patent: March 22, 2011Assignee: Broadcom CorporationInventors: Hongwei Kong, Nelson Sollenberger, Li Fung Chang, Claude Hayek, Taiyi Cheng
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Publication number: 20110013851Abstract: A method and system for pipelined processing in an integrated embedded image and video accelerator is described. Aspects of a system for pipelined processing in an integrated embedded image and video accelerator may include circuitry that enables pipeline processing of video data within a single chip, wherein the pipeline processing may further include decoding of a block of video data while simultaneously inverse transforming a previously decoded block of video data.Type: ApplicationFiled: July 20, 2010Publication date: January 20, 2011Inventors: Taiyi Cheng, Mark Hahm, Li Fung Chang