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).
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Patent number: 9826911Abstract: 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: GrantFiled: May 27, 2016Date of Patent: November 28, 2017Assignee: MEDIATEK INC.Inventors: Chih-Ming Fu, Shu-Yu Hsu, Po-Wen Ku
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Patent number: 9687164Abstract: 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: GrantFiled: April 29, 2013Date of Patent: June 27, 2017Assignee: MEDIATEK INC.Inventor: Po-Wen Ku
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Publication number: 20160354000Abstract: 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: ApplicationFiled: May 27, 2016Publication date: December 8, 2016Inventors: Chih-Ming FU, Shu-Yu HSU, Po-Wen KU
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Publication number: 20160235316Abstract: 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: ApplicationFiled: February 16, 2015Publication date: August 18, 2016Inventor: Po-Wen KU
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Publication number: 20160007862Abstract: 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: ApplicationFiled: July 14, 2014Publication date: January 14, 2016Inventor: Po-Wen KU
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Publication number: 20150366530Abstract: 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: ApplicationFiled: June 24, 2014Publication date: December 24, 2015Inventor: Po-Wen KU
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Patent number: 9031096Abstract: 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: GrantFiled: September 24, 2007Date of Patent: May 12, 2015Assignee: MediaTek Inc.Inventors: Hsing-Ju Wei, Chien-Hua Hsu, Po-Wen Ku
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Publication number: 20140323890Abstract: 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: ApplicationFiled: April 29, 2013Publication date: October 30, 2014Applicant: MEDIATEK INC.Inventor: Po-Wen Ku
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Publication number: 20090080464Abstract: 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: ApplicationFiled: September 24, 2007Publication date: March 26, 2009Applicant: MEDIATEK INC.Inventors: Hsing-Ju Wei, Chien-Hua Hsu, Po-Wen Ku
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Patent number: 7467020Abstract: 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: GrantFiled: October 27, 2003Date of Patent: December 16, 2008Assignee: Media Tek Inc.Inventor: Po-Wen Ku
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Publication number: 20060277394Abstract: 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: ApplicationFiled: July 27, 2006Publication date: December 7, 2006Applicant: MEDIATEK INC.Inventor: Po-Wen Ku
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Patent number: 7103705Abstract: 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: GrantFiled: January 27, 2003Date of Patent: September 5, 2006Assignee: Mediatek Inc.Inventor: Po-Wen Ku
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Publication number: 20050154766Abstract: 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: ApplicationFiled: December 23, 2004Publication date: July 14, 2005Inventors: Wei-Hung Huang, Po-Wen Ku
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Publication number: 20050090917Abstract: 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: ApplicationFiled: October 27, 2003Publication date: April 28, 2005Inventor: Po-Wen Ku
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Publication number: 20040158684Abstract: 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: ApplicationFiled: January 27, 2003Publication date: August 12, 2004Applicant: Media Tek Inc.Inventor: Po-Wen Ku
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Publication number: 20030194099Abstract: 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: ApplicationFiled: April 11, 2002Publication date: October 16, 2003Applicant: MEDIA TEK INC.Inventors: Wei-Hung Huang, Po-Wen Ku