Patents by Inventor Wen-Fu Tsai

Wen-Fu Tsai 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: 11907462
    Abstract: Systems and methods of automatic screen mapping are presented. In one exemplary embodiment, a method is performed by a controller device that is coupled to at least one of a set of display devices that are spatially arranged so that each display device is positioned adjacent to at least one other display device and wherein each display device includes a screen structure having a set of presence sensitive sensors. Each display device is operable, for each presence sensitive sensor of the corresponding screen structure, to detect a presence signal and to radiate a presence signal. The method includes receiving an indication that a second display device of the set of display devices has detected a presence signal radiated from a presence sensitive sensor of a first display device of the set of display devices so as to determine a spatial arrangement of the first and second display devices.
    Type: Grant
    Filed: February 10, 2023
    Date of Patent: February 20, 2024
    Assignee: Toshiba Global Commerce Solutions, Inc.
    Inventors: Wen Fu Tsai, Hawaii Xuan, Yi Hsin Huang, Ying Chi Chou
  • Publication number: 20240013183
    Abstract: A Projected Capacitive (PCAP) display including multiple arrays of conductive electrodes performs a dual function. In a first function, the PCAP display uses the conductive electrode arrays to generate an electrostatic field and determines the presence and position of a conductive object based on small changes it detects in the capacitance of that electrostatic field. In a second function, the PCAP display uses the same conductive electrode arrays to generate a magnetic field. As a user swipes the card across the surface of the PCAP display, it causes small changes in the generated magnetic field. The PCAP display retrieves the data magnetically encoded onto the magnetic stripe card based on the changes it detects in the magnetic field.
    Type: Application
    Filed: July 8, 2022
    Publication date: January 11, 2024
    Inventors: Hsuan Wei-Yi, Yi-Hsin Huang, Ying-Chi Chou, Wen-Fu Tsai
  • Publication number: 20190171941
    Abstract: An electronic device comprises a data transmitting interface configured to transmit data, a memory configured to store the data, a processor configured to execute an application program, and an accelerator coupled to the processor via a bus. According to an operation request transmitted from the processor, the accelerator reads the data from the memory, performs an operation to the data to generate computed data, and stores the computed data in the memory. The electronic device can improve computational efficiency. An accelerator and an accelerating method applicable to a neural network operation are also provided.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 6, 2019
    Inventors: Nhon-Toai QUACH, Chung-Chieh CHEN, Kong-Qiao WANG, Wen-Fu TSAI, Tzu-Wei YEH, Chung-Hao CHENG, Hui-Min LU
  • Patent number: 9001237
    Abstract: A method for processing image data is described. The method includes the steps: (a) fully writing image data into first buffer area; (b) vertically reading the image data in first buffer area and horizontally writing image data into second buffer area; (c) while completely reading a first portion of first buffer area, allocating the complete read first portion of first buffer area to second buffer area to be served as a writing section; (d) vertically reading the image data in a second portion of first buffer area and writing the image data into second buffer area; and (e) vertically reading the image data of second buffer area and horizontally writing the image data into first buffer area, and after completely reading a portion of second buffer area, allocating the read portion of second buffer area to first buffer area.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: April 7, 2015
    Assignee: Genesys Logic, Inc.
    Inventor: Wen-fu Tsai
  • Publication number: 20140098260
    Abstract: A method for processing image data is described. The method includes the steps: (a) fully writing image data into first buffer area; (b) vertically reading the image data in first buffer area and horizontally writing image data into second buffer area; (c) while completely reading a first portion of first buffer area, allocating the complete read first portion of first buffer area to second buffer area to be served as a writing section; (d) vertically reading the image data in a second portion of first buffer area and writing the image data into second buffer area; and (e) vertically reading the image data of second buffer area and horizontally writing the image data into first buffer area, and after completely reading a portion of second buffer area, allocating the read portion of second buffer area to first buffer area.
    Type: Application
    Filed: October 3, 2013
    Publication date: April 10, 2014
    Applicant: GENESYS LOGIC, INC.
    Inventor: Wen-fu TSAI
  • Patent number: 7576702
    Abstract: An automatic feedback adjustment device for a digital antenna includes a digital antenna unit, a trafficator, a tuner, a demodulator, an antenna direction driver unit, a secondary controller, and a primary controller. The digital antenna unit is a digital video/broadcasting antenna system. The trafficator is connected to the digital antenna unit to retrieve direction data associated with the actual elevation angle and direction. The tuner is connected to the digital antenna unit and the demodulator is connected to the tuner in order to receive and convert a transmission signal from a transmission terminal into the video data and a received-signal quality signal. The antenna direction driver unit is connected to the digital antenna unit in order to drive adjustment of direction and elevation angle of the antenna.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: August 18, 2009
    Assignee: Genesys Logic, Inc.
    Inventors: Hsin-Ching Yin, Wen-Ming Huang, Wen-Fu Tsai, Ching-Chun Huang, Chi-Wei Hsiao, Jin-Min Lin, Chien-Chih Wang
  • Publication number: 20080285958
    Abstract: Disclosed is a storage apparatus for digital TV video/analog TV video/digital audio broadcasting/analog audio broadcasting media (DTV/ATV/DAB/AAB). The storage apparatus comprises a controller, a DTV/ATV/DAB/AAB interface converter and at least one storage media interfaces. The controller has a plurality of terminals for controlling the storage apparatus. The DTV/ATV/DAB/AAB interface converter connects to one of the terminals and a digital/analog tuner to receive DTV/ATV/DAB/AAB signals and converts the DTV/ATV/DAB/AAB signals into DTV/ATV/DAB/AAB data. The storage media interfaces respectively connect to the terminals of the controller and to at least one portable storage media, for storing the DTV/ATV/DAB/AAB data received from the DTV/ATV/DAB/AAB interface converter into the portable storage media. The controller can be an OTG controller.
    Type: Application
    Filed: May 14, 2008
    Publication date: November 20, 2008
    Applicant: GENESYS LOGIC, INC.
    Inventors: Wen-ming Huang, Ching-chun Huang, Chi-wei Hsiao, Wen-fu Tsai, Hsin-ching Yin, Hsiang-chi Hsieh, Yu-feng Lin
  • Publication number: 20080282010
    Abstract: An audio data storage and playback apparatus is provided, including at least a USB hub or USB SIE, at least a storage media interface, and an audio codec. An upstream port of the USB hub or the USB SIE is connected to an electronic device with a USB interface. The storage media interface is connected to a downstream port of the USB hub or an endpoint of a USB SIE. The storage media interface can be connected to a portable storage media, such as flash memory, CD-R/W, DVD-R/W, and hard disk drive, to enable bi-directional data transmission and storage between the electronic device with a USB interface and the portable storage media connected to the storage media interface. The audio codec player forms a bi-directional data transmission connection with the storage media interface. The audio codec player is connected to at least an audio player and an audio input device.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 13, 2008
    Inventors: Wen-Ming Huang, Ching-Chun Huang, Chi-Wei Hsiao, Wen-Fu Tsai, Hsin-Ching Yin, Hsiang-Chi Hsieh, Yu-Feng Lin
  • Patent number: 7350094
    Abstract: An ultrawideband (UWB) frequency-tracking method and related device are provided. The method includes the following steps: (a) using an initial frequency seed to automatically track and compensate the clock signal of the USB peripheral device; (b) determining whether the automatic tracking and compensating of the clock signal is successful, for example, within a pre-defined duration; (c) if not successful in step (b), setting a new frequency seed; (d) setting the USB peripheral device off-line; and (e) reconnecting the USB peripheral device and using the new frequency seed to perform the tracking and compensating of the clock signal. The setting off-line step is to disable the pull-up resistor of the D+ signal or the pull-up resistor of the D? signal of the USB peripheral device so that the USB peripheral device becomes off-line.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: March 25, 2008
    Assignee: Genesys Logic, Inc.
    Inventors: Wen-Fu Tsai, Chien-Chih Lin, Shih-Chieh Chang
  • Patent number: 7324619
    Abstract: A method and an apparatus for auto-tracking and compensating a clock frequency are disclosed. The method is suitable for being applied in USB controllers.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: January 29, 2008
    Assignee: Genesys Logic, Inc.
    Inventors: Wen-Fu Tsai, Chien-Chih Lin, Shih-Chieh Chang
  • Publication number: 20070256106
    Abstract: A controller for filtering sub-channels of DVB is provided, including a media access control (MAC) unit, at least a data compression unit and at least a physical interface circuit. The MAC unit includes a plurality of registers. The MAC unit is connected to the DVB packets through a bus, and the registers provide storage for the program identification of at least one DVB sub-channel packet so that the MAC unit can determine whether to discard or output the DVB packet based on the program identification. The data compression unit is connected to MAC unit for being controlled to determine whether the packet should be compressed before output. The physical interface circuit is connected to the MAC unit and the data compression unit for outputting the compressed or uncompressed packets.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 1, 2007
    Inventors: Wen-Ming Huang, Chi-Wei Hsiao, Wen-Fu Tsai, Ching-Chun Huang, Hsin-Ching Yin, Chi-Hsien Wang, Ching-Lai Tsai
  • Publication number: 20070245385
    Abstract: An automatic feedback adjustment device for a digital antenna includes a digital antenna unit, a trafficator, a tuner, a demodulator, an antenna direction driver unit, a secondary controller, and a primary controller. The digital antenna unit is a digital video/broadcasting antenna system. The trafficator is connected to the digital antenna unit to retrieve direction data associated with the actual elevation angle and direction. The tuner is connected to the digital antenna unit and the demodulator is connected to the tuner in order to receive and convert a transmission signal from a transmission terminal into the video data and a received-signal quality signal. The antenna direction driver unit is connected to the digital antenna unit in order to drive adjustment of direction and elevation angle of the antenna.
    Type: Application
    Filed: May 11, 2007
    Publication date: October 18, 2007
    Inventors: Hsin-Ching Yin, Wen-Ming Huang, Wen-Fu Tsai, Ching-Chun Huang, Chi-Wei Hsiao, Jin-Min Lin, Chien-Chih Wang
  • Publication number: 20070024702
    Abstract: A storage apparatus for DTV/ATV/DAB/ANALOG AUDIO BROADCASTING media is provided, including a USB hub or USB serial interface engine (SIE), at least a DTV/ATV/DAB/ANALOG AUDIO BROADCASTING interface converter, a video/audio decoding interface and a plurality of storage media interfaces. The upstream port of the USB hub or the USB serial interface engine is connected to a USB interface of an electronic device. The DTV/ATV/DAB/ANALOG AUDIO BROADCASTING interface converter and a plurality of storage media interfaces are connected respectively to the downstream ports of the USB hub or endpoints of USB serial interface engine. The DTV/ATV/DAB/ANALOG AUDIO BROADCASTING interface converter can convert DTV/ATV/DAB/ANALOG AUDIO BROADCASTING signals into data uploaded through the USB hub or the USB serial interface engine to the electronic device with the USB interface for playing.
    Type: Application
    Filed: July 24, 2006
    Publication date: February 1, 2007
    Inventors: Wen-Ming Huang, Hsin-Ching Yin, Chi-Wei Hsiao, Chi-Hsien Wang, Wen-Fu Tsai, Shu-Hui Gong
  • Publication number: 20050271168
    Abstract: A method and an apparatus for auto-tracking and compensating a clock frequency are disclosed. The method is suitable for being applied in USB controllers.
    Type: Application
    Filed: June 3, 2004
    Publication date: December 8, 2005
    Inventors: Wen-Fu Tsai, Chien-Chih Lin, Shih-Chieh Chang
  • Publication number: 20050057295
    Abstract: An ultrawideband (UWB) frequency-tracking method and related device are provided. The method includes the following steps: (a) using an initial frequency seed to automatically track and compensate the clock signal of the USB peripheral device; (b) determining whether the automatic tracking and compensating of the clock signal is successful, for example, within a pre-defined duration; (c) if not successful in step (b), setting a new frequency seed; (d) setting the USB peripheral device off-line; and (e) reconnecting the USB peripheral device and using the new frequency seed to perform the tracking and compensating of the clock signal. The setting off-line step is to disable the pull-up resistor of the D+ signal or the pull-up resistor of the D? signal of the USB peripheral device so that the USB peripheral device becomes off-line.
    Type: Application
    Filed: September 17, 2004
    Publication date: March 17, 2005
    Inventors: Wen-Fu Tsai, Chien-Chih Lin, Shih-Chieh Chang
  • Publication number: 20040090422
    Abstract: A keyboard having a plurality of alphabetical keys and number keys is proposed. The alphabetical keys are divided into a first key combination and a second key combination, and the number keys are located between the first and second key combinations. The number keys are adjacent to a plurality of cursor shifting keys. The number keys are arranged in columns, and the cursor shifting keys are arranged in rows below the number keys. The cursor shifting keys are positioned at a lower elevation than the number keys so as to avoid hitting the wrong keys by mistake during user's key-in operation. The number keys further include an Enter key, while a Backspace key and a Tab key are adjacent to the number keys to reduce hand-moving range for the user, so as improve key-in speed and satisfy ergonomic criteria.
    Type: Application
    Filed: November 10, 2003
    Publication date: May 13, 2004
    Inventor: Wen-Fu Tsai
  • Publication number: 20040007917
    Abstract: The present invention provides a cascaded network power control system comprising at least a controlled power site and a control center. The controlled power site has a front end processor (FEP). The FEP at least has two network ports (an uplink network port and a downlink network port). The control center uses an optical fiber to connect the network ports of the FEP, and uses the network ports of the FEP to establish contact with another controlled power site. The network ports are connected with network ports of a preceding controlled power site and the next controlled power site for transmission of a normal/abnormal signal of an intelligent electricity device (IED) of the preceding controlled power site. The normal/abnormal signal is transmitted to the IED of the local controlled power site via an RS232 or RS485 port.
    Type: Application
    Filed: July 15, 2002
    Publication date: January 15, 2004
    Applicant: ALLIS ELECTRIC CO., LTD.
    Inventors: Sen Jia Wu, Wen-Fu Tsai, Jiann-Yi Fann, Fu-Hsiu Chiang