Patents Assigned to Silicon Integrated Systems Corp.
  • Publication number: 20180160233
    Abstract: A sensing device comprises a charge pump, a MEMS sensor, a source follower and a PGA. The charge pump is configured to provide a pump voltage. The MEMS sensor is electrically connected to the charge pump and configured to generate an input voltage according to environment variations. The source follower is electrically connected to the MEMS sensor and configured to generate a followed reference voltage according to the pump voltage and to generate a followed input voltage according to the input voltage. The PGA has an input end of the PGA electrically connected to the source follower and is configured to generate two-ended differential output voltages outputted through a first output end and a second output end according to a difference between the followed reference voltage and the followed input voltage.
    Type: Application
    Filed: November 29, 2017
    Publication date: June 7, 2018
    Applicant: SILICON INTEGRATED SYSTEMS CORP.
    Inventors: Ssu-Che YANG, Wen-Chi LIN, Keng-Nan CHEN
  • Publication number: 20180152157
    Abstract: A programmable gain amplifier includes an active load module, a first differential pair, a second differential pair and a power source module. The first and second differential pairs are electrically connected to the active load module. The power source module is electrically connected to the first current source end of the first differential pair and the second current source end of the second differential pair. The power source module supplies a first current to the first differential pair through the first current source end. The power source module supplies a second current to the second differential pair through the second current source end. The power source module adjusts the potential of the first current, the potential of the second current, or both.
    Type: Application
    Filed: August 4, 2017
    Publication date: May 31, 2018
    Applicant: SILICON INTEGRATED SYSTEMS CORP.
    Inventors: Ssu-Che YANG, Wen-Chi LIN, Keng-Nan CHEN
  • Publication number: 20180127264
    Abstract: A sensing device includes a micro-electromechanical sensor, a source follower and an amplifier. The source follower includes a first output module including a first transistor and a second transistor. The micro-electromechanical sensor is configured to generate an input signal. A first terminal of the first transistor is configured to receive a first reference voltage. A second terminal and a control of the first transistor are electrically connected to the first output terminal and to a first current source respectively. A first terminal and a second terminal of the second transistor are electrically connected to the second terminal and the control terminal of the first transistor respectively. A control terminal of the second transistor is configured to receive the input signal. A first input terminal and a second input terminal of the amplifier are electrically connected to a first output terminal configured to receive a common-mode voltage respectively.
    Type: Application
    Filed: August 4, 2017
    Publication date: May 10, 2018
    Applicant: SILICON INTEGRATED SYSTEMS CORP.
    Inventors: Ssu-Che YANG, Wen-Chi LIN, Keng-Nan CHEN
  • Publication number: 20180121021
    Abstract: A touch detection method is applied to a touch panel including sensing units and includes: detecting sensing values corresponding to the sensing units; selecting a first sensing value that is a local maximum among the sensing values; determining a first sensing unit corresponding to the first sensing value among the sensing units; selecting from the sensing units a second sensing unit located at the first side of the first sensing unit; selecting from the sensing values a second sensing value corresponding to the second sensing unit; and generating a touch coordinate according to the first sensing value, the second sensing value, a touch sensing value distribution model, and the coordinate of the first sensing unit.
    Type: Application
    Filed: August 31, 2017
    Publication date: May 3, 2018
    Applicant: SILICON INTEGRATED SYSTEMS CORP.
    Inventors: Hsin-Hsuan YU, Chin-Hua KUO
  • Patent number: 9898109
    Abstract: The disclosure provides an active stylus pen and signal transmission methods for the active stylus pen and a touch panel. The stylus has a touch module, a switching module, a signal comparison module, a control module and a pressure sensing module. The stylus determines a first signal generated by a touch panel, and compares an intensity of the first signal and a reference value through a first transmission path. When the intensity of the first signal exceeds the reference value, the stylus outputs a second signal to the touch panel. After the stylus outputs the second signal to the touch panel, the stylus switches to a second transmission path from the first transmission path. The stylus outputs a header signal to the touch panel. When determining a first time sequential distribution, the stylus outputs at least one bit of a pressure signal according to a second time sequential distribution.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: February 20, 2018
    Assignee: SILICON INTEGRATED SYSTEMS CORP.
    Inventors: Min-Yan Ciou, Chin-Hua Kuo, Ying-Jyh Yeh
  • Publication number: 20170329977
    Abstract: An encoding-locked method for audio processing for audio receiving device includes the following steps: inserting a first encryption key into a first digital signal stream so as to obtain a second digital signal stream, checking whether there is the first encryption key in a received digital signal stream so as to determine whether the received digital signal stream is the second digital signal stream, and when the received digital signal stream is not the second digital signal stream, no processing the received digital signal stream.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Applicant: SILICON INTEGRATED SYSTEMS CORP.
    Inventors: Min-Han LEE, Sin-Kuo CHO
  • Patent number: 9785216
    Abstract: A power management apparatus and a power management method are provided. The method includes the following steps. Conduct a first current path during a first period. Provide a first voltage to an operation end when the first current path conducts and a microprocessor is disabled. The first voltage is used to selectively conduct a second path during the first period. Provide a second voltage to the microprocessor when the second current path conducts. The second voltage is used to turn on the microprocessor. Provide a third voltage to the operation end by the microprocessor when the microprocessor is turned on. The third voltage is used to keep the second current path conducted.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: October 10, 2017
    Assignee: SILICON INTEGRATED SYSTEMS CORP.
    Inventors: Mu-Tsan Yu, Min-Yan Ciou, Ying-Jyh Yeh
  • Publication number: 20170160859
    Abstract: A dual-mode touch sensing method adapted for a stylus and a touch panel comprising N first signal lines and M second signal lines. The method comprises: sequentially controlling the N first signal lines to emit N corresponding pulse signals in N gesture periods in a scanning period, receiving M gesture feedback signals corresponding to the pulse signals via the M second signal lines in each among the N gesture periods, selectively generating a gesture signal based on the gesture feedback signals, determining a stylus period other than the N gesture periods in the scanning period by the stylus, generating a stylus signal in the stylus period by the stylus, and receiving the stylus signal and generating a stylus touching signal accordingly by the touch panel.
    Type: Application
    Filed: August 5, 2016
    Publication date: June 8, 2017
    Applicant: SILICON INTEGRATED SYSTEMS CORP.
    Inventors: Chia-Yi CHU, Song Sheng LIN
  • Publication number: 20160203103
    Abstract: An integrated framework of a memory storage module and a sensor module comprises a sensor controller, an embedded memory storage device controller, a microcontroller, and a non-volatile memory. By way of integrating the sensor controller and the embedded memory storage device controller sharing a same microcontroller and a same non-volatile memory, the complexity of packaging and the manufacturing cost are accordingly reduced.
    Type: Application
    Filed: January 7, 2016
    Publication date: July 14, 2016
    Applicant: Silicon Integrated Systems Corp.
    Inventors: Ming Cheng Yu, Min Han Lee, Sin Kuo Cho
  • Patent number: 9262026
    Abstract: A capacitive touch device and a sensing method thereof are disclosed. The capacitive touch device includes a touch panel, at least one touch detection unit and a processing unit. The touch detection unit scans the touch panel, obtains an N-bit sensed data and compresses the N-bit sensed data to an L-bit sensed data. The processing unit receives the L-bit sensed data, decompresses the L-bit sensed data to the N-bit sensed data and calculates a coordinate of a touch according to the N-bit sensed data. The present invention is capable of decreasing the time for transmitting the sensed data, the power consumption and the requirements for the memory capacity of the touch detection unit and the memory capacity of the processing unit.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: February 16, 2016
    Assignee: SILICON INTEGRATED SYSTEMS CORP.
    Inventors: Jih-Ming Hsu, Chia-Yi Chu, Chin-Hua Kuo
  • Patent number: 9262025
    Abstract: A touch input device provided in the present invention includes a pen tip, a pressure sensing module, a control unit and a PWM generator. The pen tip is utilized to touch a capacitive touchscreen and conduct a touchscreen driving signal. The pressure sensing module is utilized to generate a pressure sensing signal which corresponds to a pressure of the pen tip on the capacitive touchscreen. The control unit is utilized to receive the touchscreen driving signal and the pressure sensing signal, and then to generate a PWM control signal according to the pressure sensing signal. Further, a pulse width of the PWM control signal is proportional to the pressure. The PWM generator is utilized to provide a PWM signal to the pen tip according to the PWM control signal. A touch input system is further provided in the present invention.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: February 16, 2016
    Assignee: SILICON INTEGRATED SYSTEMS CORP.
    Inventors: Mu-Tsan Yu, Ying-Jyh Yeh
  • Patent number: 9218097
    Abstract: A capacitive touch device and a sensing method thereof are disclosed. The capacitive touch device includes a touch panel and a plurality of touch detection units. The touch panel includes first sensing lines and second sensing lines. The position of a touch between a last one of the first sensing lines and a first one of the second sensing lines is calculated according to sensed values respectively corresponding to a first sensing line prior to the last one of the first sensing lines, the last one of the first sensing lines and the first one of the second sensing lines. The present invention is capable of avoiding the problem that the frame rate is reduced significantly because of the data transmission between the first and second touch detection units.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: December 22, 2015
    Assignee: SILICON INTEGRATED SYSTEMS CORP
    Inventors: Jih-Ming Hsu, Chia-Yi Chu
  • Publication number: 20150300890
    Abstract: An on-chip temperature sensing device is disclosed. The disclosed on-chip temperature sensing device is capable of sensing an environmental temperature of the chip. The device comprises a reference generating circuit, a first oscillator, a second oscillator, and an arithmetic logic unit. The reference generating circuit is configured to generate a first control voltage to control the first oscillator and the second oscillator. The bias current of the first oscillator and the bias current of the second oscillator are both controlled by the first control voltage so that the bias current of the first oscillator is directly proportional the bias current of the second oscillator regardless the environmental temperature. The first oscillator generates a first oscillation signal, while the second oscillator generates a second oscillation signal. The arithmetic logic unit may calculate the environmental temperature according to the first oscillation signal and the second oscillation signal.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 22, 2015
    Applicant: Silicon Integrated Systems Corp.
    Inventor: Song-Sheng LIN
  • Publication number: 20150261342
    Abstract: A capacitive touch device and a sensing method thereof are disclosed. The capacitive touch device includes a touch panel, at least one touch detection unit and a processing unit. The touch detection unit scans the touch panel, obtains an N-bit sensed data and compresses the N-bit sensed data to an L-bit sensed data. The processing unit receives the L-bit sensed data, decompresses the L-bit sensed data to the N-bit sensed data and calculates a coordinate of a touch according to the N-bit sensed data. The present invention is capable of decreasing the time for transmitting the sensed data, the power consumption and the requirements for the memory capacity of the touch detection unit and the memory capacity of the processing unit.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 17, 2015
    Applicant: SILICON INTEGRATED SYSTEMS CORP
    Inventors: JIH-MING HSU, CHIA-YI CHU, CHIN-HUA KUO
  • Patent number: 9036009
    Abstract: An image compensation device is disclosed. The image compensation image compensation device comprises a 3D band pass filter, a 3D notch filter, a 3D notch mixing unit, a 3D summing unit, a non-3D notch filter, a non-3D band pass filter, a non-3D notch mixing unit, a non-3D band pass mixing unit, and a non-3D summing unit. The 3D notch mixing unit is used for compensating an output of the 3D notch filter. The non-3D notch mixing unit is used for compensating an output of the non-3D notch filter. The non-3D band pass mixing unit is used for compensating an output of the non-3D band pass filter. The image compensation device of the present invention is capable of avoiding the unstable and sparkle-like situation in the prior arts.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: May 19, 2015
    Assignee: SILICON INTEGRATED SYSTEMS CORP.
    Inventors: Albert Hua Tai, Heng-Yi Liu
  • Publication number: 20150116256
    Abstract: A capacitive touch device and a sensing method thereof are disclosed. The capacitive touch device includes a touch panel and a plurality of touch detection units. The touch panel includes first sensing lines and second sensing lines. The position of a touch between a last one of the first sensing lines and a first one of the second sensing lines is calculated according to sensed values respectively corresponding to a first sensing line prior to the last one of the first sensing lines, the last one of the first sensing lines and the first one of the second sensing lines. The present invention is capable of avoiding the problem that the frame rate is reduced significantly because of the data transmission between the first and second touch detection units.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: SILICON INTEGRATED SYSTEMS CORP
    Inventors: Jih-Ming HSU, Chia-Yi CHU
  • Publication number: 20150116257
    Abstract: A capacitive touch device and a sensing method thereof are disclosed. The capacitive touch device includes a touch panel and a plurality of touch detection units. The touch panel includes first sensing lines and second sensing lines. The position of a touch between a last one of the first sensing lines and a first one of the second sensing lines can be calculated by the first touch detection unit, the second touch detection unit, or both. The present invention is capable of avoiding the problem that the frame rate is reduced significantly because of the data transmission between the first and second touch detection units.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: SILICON INTEGRATED SYSTEMS CORP
    Inventors: Jih-Ming HSU, Chin-Hua KAO
  • Patent number: 9013549
    Abstract: A method of depth map generation is disclosed. The method comprises the steps of: scaling down a video unit and a previous video unit to generate a reduced video unit and a reduced previous video unit; dividing the reduced video unit into N1 portions and a buffer into N2 storing units; performing a motion estimation for a target pixel of the reduced video unit to obtain a motion vector based on pixels in a preset search window established in the reduced previous video unit; assigning a depth value to the target pixel according to the motion vector; storing the target pixel in one of the N2 storing units sequentially; and, repeating the steps of performing, assigning and storing until all pixels of the reduced video unit are processed to obtain a motion depth map.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: April 21, 2015
    Assignee: Silicon Integrated Systems Corp.
    Inventors: Yen-Yu Chen, Ching-Chang Shih
  • Publication number: 20150070293
    Abstract: A touch input device provided in the present invention includes a pen tip, a pressure sensing module, a control unit and a PWM generator. The pen tip is utilized to touch a capacitive touchscreen and conduct a touchscreen driving signal. The pressure sensing module is utilized to generate a pressure sensing signal which corresponds to a pressure of the pen tip on the capacitive touchscreen. The control unit is utilized to receive the touchscreen driving signal and the pressure sensing signal, and then to generate a PWM control signal according to the pressure sensing signal. Further, a pulse width of the PWM control signal is proportional to the pressure. The PWM generator is utilized to provide a PWM signal to the pen tip according to the PWM control signal. A touch input system is further provided in the present invention.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 12, 2015
    Applicant: Silicon Integrated Systems Corp.
    Inventors: Mu-Tsan Yu, Ying-Jyh Yeh
  • Patent number: 8976146
    Abstract: A method of reducing computation of water tolerance by projecting touch data is disclosed, targeting the handheld devices. The method targets first at obtaining a difference array, followed by extracting minimum values of rows and columns of the difference array to obtain a row projection list and a column projection list respectively. By repeated implementing of mutual capacitance detection, ghost water blocks can be wiped out from the multiple water blocks. Once integrating with a local spatial boundary detection algorithm, the sensed signals of intended input located within a rectangular water block yet beyond a real water block are consequently detected. The computational algorithm of the water tolerance of this invention is successfully built into the touch panel controller due to its substantially reduced computation.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: March 10, 2015
    Assignee: Silicon Integrated Systems Corp.
    Inventors: Jih-Ming Hsu, Chin-hua Kuo