Patents by Inventor Po-Wen Ku

Po-Wen Ku 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: 9826911
    Abstract: A wearable device is provided. The wearable device includes a photon sensor, a processor, and an output unit. The photon sensor senses light reflected from a specific region and transforms the sensed light to a plurality of electric-signal components. The processor receives the electric-signal components sensed within a period to form a dimensional sensing signal. The processor extracts a feature of a waveform of the dimensional sensing signal and determines whether a predetermined heart condition of the object is present according to the feature of the waveform of the dimensional sensing signal to generate a determination signal. The output unit is coupled to the processor. The output unit receives the determination signal and generates an alarm signal according to the determination signal.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: November 28, 2017
    Assignee: MEDIATEK INC.
    Inventors: Chih-Ming Fu, Shu-Yu Hsu, Po-Wen Ku
  • Patent number: 9687164
    Abstract: Embodiments of the invention disclose a method and a system for signal analyzing and a processing module of the system. The signal analyzing system includes a plurality of first electrodes, a plurality of second electrodes, and a processing module. The first electrodes transmit a plurality of first input signals. The second electrodes transmit a plurality of second input signals. The processing module generates a body electrical signal according to at least one of the plurality of first input signals and at least one of the plurality of second input signals, generates a first filtered signal corresponding to the plurality of first input signals, generates a second filtered signal corresponding to the plurality of second input signals, and generates a lead signal according to the body electrical signal, the first filtered signal and the second filtered signal.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: June 27, 2017
    Assignee: MEDIATEK INC.
    Inventor: Po-Wen Ku
  • Publication number: 20160354000
    Abstract: A wearable device is provided. The wearable device includes a photon sensor, a processor, and an output unit. The photon sensor senses light reflected from a specific region and transforms the sensed light to a plurality of electric-signal components. The processor receives the electric-signal components sensed within a period to form a dimensional sensing signal. The processor extracts a feature of a waveform of the dimensional sensing signal and determines whether a predetermined heart condition of the object is present according to the feature of the waveform of the dimensional sensing signal to generate a determination signal. The output unit is coupled to the processor. The output unit receives the determination signal and generates an alarm signal according to the determination signal.
    Type: Application
    Filed: May 27, 2016
    Publication date: December 8, 2016
    Inventors: Chih-Ming FU, Shu-Yu HSU, Po-Wen KU
  • Publication number: 20160235316
    Abstract: A physiological signal processing circuit includes an amplifier, an analog-to-digital converter, and a physiological characteristic detector circuit. The amplifier is configured to amplify an analog physiological signal of a user for providing an amplified signal. The analog-to-digital converter is coupled to the amplifier, and is configured to convert the amplified signal to a digital signal. The physiological characteristic detector circuit is coupled to the analog-to-digital converter, and configured to detect a physiological characteristic of the user from the digital signal so as to provide an output signal.
    Type: Application
    Filed: February 16, 2015
    Publication date: August 18, 2016
    Inventor: Po-Wen KU
  • Publication number: 20160007862
    Abstract: A personal health device includes multiple photoplethysmogram (PPG) sensors, multiple electrodes and a processing circuit. The PPG sensors are configured for sensing multiple PPG signals. The electrodes are configured for sensing multiple skin voltages. The processing circuit is coupled to the PPG sensors and the electrodes and configured for estimating an ankle brachial pressure index (ABI) according to the PPG signals and the skin voltages.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 14, 2016
    Inventor: Po-Wen KU
  • Publication number: 20150366530
    Abstract: A device for detecting fistula stenosis is provided. The device includes a physiological signal sensor, an acoustic receiver and a processing circuit. The physiological signal sensor is configured for providing a physiological signal of a user. The acoustic receiver is configured for detecting a sound from a fistula of the user to generate a sound signal. The processing circuit is configured for providing a degree of fistula stenosis according to the physiological signal of the user and the sound signal.
    Type: Application
    Filed: June 24, 2014
    Publication date: December 24, 2015
    Inventor: Po-Wen KU
  • Patent number: 9031096
    Abstract: A multimedia data system comprising a synchronization unit. The synchronization unit receives a demodulated bitstream, checks whether a FAW pattern corresponding to a candidate of the bitstream exists, checks whether an additional information corresponding to the candidate of the bitstream is valid when the FAW pattern exists, determines a hit weighting corresponding to the candidate according to the checking result, determines whether the hit weighting meets a criterion and outputs a synchronization signal when the hit weighting meets the criterion.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: May 12, 2015
    Assignee: MediaTek Inc.
    Inventors: Hsing-Ju Wei, Chien-Hua Hsu, Po-Wen Ku
  • Publication number: 20140323890
    Abstract: Embodiments of the invention disclose a method and a system for signal analyzing and a processing module of the system. The signal analyzing system includes a plurality of first electrodes, a plurality of second electrodes, and a processing module. The first electrodes transmit a plurality of first input signals. The second electrodes transmit a plurality of second input signals. The processing module generates a body electrical signal according to at least one of the plurality of first input signals and at least one of the plurality of second input signals, generates a first filtered signal corresponding to the plurality of first input signals, generates a second filtered signal corresponding to the plurality of second input signals, and generates a lead signal according to the body electrical signal, the first filtered signal and the second filtered signal.
    Type: Application
    Filed: April 29, 2013
    Publication date: October 30, 2014
    Applicant: MEDIATEK INC.
    Inventor: Po-Wen Ku
  • Publication number: 20090080464
    Abstract: A multimedia data system comprising a synchronization unit. The synchronization unit receives a demodulated bitstream, checks whether a FAW pattern corresponding to a candidate of the bitstream exists, checks whether an additional information corresponding to the candidate of the bitstream is valid when the FAW pattern exists, determines a hit weighting corresponding to the candidate according to the checking result, determines whether the hit weighting meets a criterion and outputs a synchronization signal when the hit weighting meets the criterion.
    Type: Application
    Filed: September 24, 2007
    Publication date: March 26, 2009
    Applicant: MEDIATEK INC.
    Inventors: Hsing-Ju Wei, Chien-Hua Hsu, Po-Wen Ku
  • Patent number: 7467020
    Abstract: According to the claimed invention, a DSP is disclosed. The DSP comprises a processing unit for processing the data stream, a first memory coupled to the processing unit for storing a destination volume value, and a second memory coupled to the processing unit for storing a time_determining value wherein the processing unit adjusts the volume of the signal stored in the data stream according to the time_determining value such that the adjustment from a current volume value of the signal to the destination volume value is accomplished within a predetermined time.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: December 16, 2008
    Assignee: Media Tek Inc.
    Inventor: Po-Wen Ku
  • Publication number: 20060277394
    Abstract: A computing system includes a digital signal processor, a storage medium for storing parameter tables, a central processing unit coupled to the digital signal processor and the storage medium, and a shared memory coupled to the digital signal processor and the central processing unit. The digital signal processor stores a data request in the shared memory and issues a request command to the central processing unit when access to the parameter tables is desired. Upon receipt of the request command, the central processing unit reads the data request in the shared memory, accesses the storage medium for retrieving requested data that corresponds to the data request, stores the requested data in the shared memory, and issues a response command to the digital signal processor. The digital signal processor retrieves the requested data from the shared memory upon receipt of the response command from the central processing unit.
    Type: Application
    Filed: July 27, 2006
    Publication date: December 7, 2006
    Applicant: MEDIATEK INC.
    Inventor: Po-Wen Ku
  • Patent number: 7103705
    Abstract: A computing system includes a digital signal processor, a storage medium for storing parameter tables, a central processing unit coupled to the digital signal processor and the storage medium, and a shared memory coupled to the digital signal processor and the central processing unit. The digital signal processor stores a data request in the shared memory and issues a request command to the central processing unit when access to the parameter tables is desired. Upon receipt of the request command, the central processing unit reads the data request in the shared memory, accesses the storage medium for retrieving requested data that corresponds to the data request, stores the requested data in the shared memory, and issues a response command to the digital signal processor. The digital signal processor retrieves the requested data from the shared memory upon receipt of the response command from the central processing unit.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: September 5, 2006
    Assignee: Mediatek Inc.
    Inventor: Po-Wen Ku
  • Publication number: 20050154766
    Abstract: A multimedia processing system includes a selector, an output playback apparatus, a controller, and an A/V signal detector. The selector has a plurality of input ports for receiving multimedia signals and for selecting and outputting one of the multimedia signals according to a selection control signal. The output playback apparatus is used for playing the multimedia signal outputted by the selector in the output playback apparatus. The controller is used for generating the corresponding selection control signals to the selector. The A/V signal detector is used for detecting whether the input ports of the selector have received a newly inputted multimedia signal. When a newly inputted multimedia signal is detected, the A/V signal detector outputs a specific selection signal to the controller, so the controller subsequently generates the corresponding selection control signal to the selector for selecting and outputting the newly inputted multimedia signal to the output playback apparatus.
    Type: Application
    Filed: December 23, 2004
    Publication date: July 14, 2005
    Inventors: Wei-Hung Huang, Po-Wen Ku
  • Publication number: 20050090917
    Abstract: According to the claimed invention, a DSP is disclosed. The DSP comprises a processing unit for processing the data stream, a first memory coupled to the processing unit for storing a destination volume value, and a second memory coupled to the processing unit for storing a time_determining value wherein the processing unit adjusts the volume of the signal stored in the data stream according to the time_determining value such that the adjustment from a current volume value of the signal to the destination volume value is accomplished within a predetermined time.
    Type: Application
    Filed: October 27, 2003
    Publication date: April 28, 2005
    Inventor: Po-Wen Ku
  • Publication number: 20040158684
    Abstract: A computing system includes a digital signal processor, a storage medium for storing parameter tables, a central processing unit coupled to the digital signal processor and the storage medium, and a shared memory coupled to the digital signal processor and the central processing unit. The digital signal processor stores a data request in the shared memory and issues a request command to the central processing unit when access to the parameter tables is desired. Upon receipt of the request command, the central processing unit reads the data request in the shared memory, accesses the storage medium for retrieving requested data that corresponds to the data request, stores the requested data in the shared memory, and issues a response command to the digital signal processor. The digital signal processor retrieves the requested data from the shared memory upon receipt of the response command from the central processing unit.
    Type: Application
    Filed: January 27, 2003
    Publication date: August 12, 2004
    Applicant: Media Tek Inc.
    Inventor: Po-Wen Ku
  • Publication number: 20030194099
    Abstract: In a method and apparatus for processing a microphone audio signal, the microphone audio signal is converted into an initial digital signal at a first sampling frequency. The initial digital signal is stored in a memory at a second sampling frequency lower than the first sampling frequency. The initial digital signal stored in the memory is processed so as to result in a processed digital signal. The processed digital signal is outputted at an output frequency equal to the first sampling frequency. The initial digital signal and the processed digital signal are combined to result in a composite digital signal. Finally, the composite digital signal is converted into an analog processed audio signal output.
    Type: Application
    Filed: April 11, 2002
    Publication date: October 16, 2003
    Applicant: MEDIA TEK INC.
    Inventors: Wei-Hung Huang, Po-Wen Ku