Patents by Inventor Wen-Chieh Lee

Wen-Chieh Lee 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: 7457522
    Abstract: A system and method of a DVD player for displaying multiple subtitles includes a loading platform for reading digital data of DVD storage media; an interface management platform of receiving end for transmitting a decoded message of a first subtitle set image to a comparison platform. The comparison platform is for checking whether control signal of the first subtitle set image from the loading platform exists in an accumulator register. If not, the digital data is analyzed and decoded through an analytic platform and a decoder platform according to an identifying code of data flow and the first subtitle set image control signal. Then a mixed digital video signal and a digital audio signal are outputted by an image construct platform and an output platform.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: November 25, 2008
    Assignee: Corel TW Corp.
    Inventors: Eldon Liu, Wen-Chieh Lee
  • Patent number: 7433996
    Abstract: A method for operating a memory device that comprises periodically generating a refresh request signal for performing a refresh operation, providing an access request signal for performing an access operation, performing the refresh operation if the refresh request signal occurs prior to the access request signal, and performing the access operation if the access request signal occurs prior to the refresh request signal.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: October 7, 2008
    Assignee: MEMOCOM Corp.
    Inventors: Hong-Gee Fang, Wen-Chieh Lee, Wei-Chieh Wu
  • Publication number: 20080109215
    Abstract: High frequency components of audio signals are reconstructed from the aspects of envelope and fine detail. The envelopes of the high frequency components are found through linear extrapolation of signals with frequencies lower than a cutoff frequency point. One method of reconstructing high frequency components is based on the linear extrapolation on the logarithm scale magnitudes of the transform coefficients of the audio signal in a frequency domain. The linear extrapolation is a linear approximation based on minimizing least squares of the logarithm scale magnitudes of the transform coefficients of the low frequency components. Another method is based on the linear extrapolation on the logarithm scale magnitudes of the envelope elements of the filterbank signals of the audio signal over a time segment. The linear extrapolation is a linear approximation based on minimizing least squares of the logarithm scale magnitudes of the envelope elements of the low frequency filterbank signals.
    Type: Application
    Filed: June 26, 2006
    Publication date: May 8, 2008
    Inventors: Chi-min Liu, Wen-chieh Lee, Han-Wen Hsu
  • Publication number: 20080074914
    Abstract: A memory device comprises a first memory cell and a second memory cell. The first memory cell includes a first transistor coupled to a bit line and the second memory cell includes a second transistor coupled to a bit line bar. The first transistor includes a first gate terminal coupled to a first word line. The second transistor includes a second gate terminal coupled to a second word line. The first transistor and the second transistor are controlled by the first word line and the second word line respectively. A first sense amplifier having an asymmetric configuration is coupled to the bit line and the bit line bar and is capable to sense a status of at least one of the bit line and the bit line bar.
    Type: Application
    Filed: September 21, 2007
    Publication date: March 27, 2008
    Applicant: MEMOCOM CORP.
    Inventors: Hong-Gee FANG, Wen-Chieh LEE, Ching-Wen CHEN, Chih-Yuan CHENG, Chung-Cheng WU
  • Publication number: 20080004873
    Abstract: A method for digital encoding of an audio stream in which the psychoacoustic modeling bases its computations upon an MDCT for the intensity and a spectral flatness measurement that replaces the phase data for the unpredictability measurement. This dramatically reduces computational overhead while also providing an improvement in objectively measured quality of the encoder output. This also allows for determination of tonal attacks to compute masking effects.
    Type: Application
    Filed: June 28, 2006
    Publication date: January 3, 2008
    Inventors: Chi-min Liu, Wen-chieh Lee, Chiou Tin
  • Publication number: 20080004870
    Abstract: A method of detecting for activating a temporal noise shaping process in coding audio signals comprises the steps of receiving continuous audio signals; computing a perceptual entropy value of each audio signal; comparing the perceptual entropy value with a threshold according to a discriminative condition; and activating temporal noise shaping process when a corresponding result is set true.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 3, 2008
    Inventors: Chi-min Liu, Wen-chieh Lee, Tzu-wen Chang
  • Publication number: 20070223274
    Abstract: A complex memory chip is provided. The complex memory chip comprises a first pin, a second pin, a voltage generator, a flash memory, and a static random access memory (SRAM). The first pin is capable of transmitting a first voltage. The second pin is capable of transmitting a second voltage which is lower than the first voltage, so as to define a working voltage in association with the first voltage. The voltage generator generates a third voltage according to the first voltage, wherein the third voltage is greater than the first voltage. The flash memory and the SRAM operate under the working voltage. The flash memory erases data according to the third voltage.
    Type: Application
    Filed: March 22, 2007
    Publication date: September 27, 2007
    Applicant: MEMOCOM CORP.
    Inventors: Wen-Chieh Lee, Hsiang-Cheng Ho
  • Patent number: 7158400
    Abstract: A method of operating a dynamic random access memory (DRAM) using a bit line and a bit line bar is disclosed. The DRAM stores data by using a charge storage device, which is coupled to the bit line via a switch device. A voltage drop occurs when the switch device is turned on. The method programs the charge storage device with a first voltage or a zero voltage in response to a power voltage reduction due to the voltage drop. For accessing the data, the bit line and the bit line bar are charged to the power voltage, the switch device is turned on and the data stored in the charge storage device is determined according to a voltage difference between the bit line and the bit line bar.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: January 2, 2007
    Assignee: Memocom Corp.
    Inventors: Hong-Gee Fang, Wen-Chieh Lee, Ching-Tang Wu
  • Publication number: 20060263727
    Abstract: A method for fabricating a circuitry component includes providing a semiconductor substrate, a first coil over said semiconductor substrate, a passivation layer over said first coil; and depositing a second coil over said passivation layer and over said first coil. Said second coil may be deposited by forming a first metal layer over said passivation layer, forming a pattern defining layer over said first metal layer, a first opening in said pattern defining layer exposing said first metal layer, forming a second metal layer over said first metal layer exposed by said first opening, removing said pattern defining layer, and removing said first metal layer not under said second metal layer.
    Type: Application
    Filed: May 17, 2006
    Publication date: November 23, 2006
    Inventors: Wen-Chieh Lee, Mou-Shiung Lin, Chien-Kang Chou, Yi-Cheng Liu, Chiu-Ming Chou, Jin-Yuan Lee
  • Patent number: 7113439
    Abstract: A method of operating a memory device including an array of cells formed in rows and columns that comprises providing a control signal, activating the control signal, the activated control signal including a first state and a second state, continuously performing access cycles in response to the first state of the activated control signal in one part of a period, and continuously performing refresh cycles in response to the second state of the activated control signal in another part of the period.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: September 26, 2006
    Assignee: MemoCom Corp.
    Inventors: Hong-Gee Fang, Wen-Chieh Lee, Wei-Chieh Wu, Ching-Wen Chen
  • Publication number: 20060023487
    Abstract: A method of operating a dynamic random access memory (DRAM) using a bit line and a bit line bar is disclosed. The DRAM stores data by using a charge storage device, which is coupled to the bit line via a switch device. A voltage drop occurs when the switch device is turned on. The method programs the charge storage device with a first voltage or a zero voltage in response to a power voltage reduction due to the voltage drop. For accessing the data, the bit line and the bit line bar are charged to the power voltage, the switch device is turned on and the data stored in the charge storage device is determined according to a voltage difference between the bit line and the bit line bar.
    Type: Application
    Filed: October 14, 2004
    Publication date: February 2, 2006
    Inventors: Hong-Gee Fang, Wen-Chieh Lee
  • Publication number: 20060004954
    Abstract: A method for operating a memory device that comprises periodically generating a refresh request signal for performing a refresh operation, providing an access request signal for performing an access operation, performing the refresh operation if the refresh request signal occurs prior to the access request signal, and performing the access operation if the access request signal occurs prior to the refresh request signal.
    Type: Application
    Filed: July 1, 2004
    Publication date: January 5, 2006
    Inventors: Hong-Gee Fang, Wen-Chieh Lee, Wei-Chieh Wu
  • Publication number: 20050251689
    Abstract: A computer system and a method for playing encrypted multimedia data are proposed. The computer system has a first operating system that heavily consumes system resources and a second operating system that slightly consumes the system resources. Via a basic input/output system (BIOS), the computer system is booted with a second operating system. The second operating system uses a multimedia-receiving unit to receive remote encrypted multimedia data and store the data into a storage unit. The second operating system uses a decrypting unit to access at least one kind of the encrypted multimedia data stored in the storage unit and the register information corresponding to the encrypted multimedia data from a first operating system for decryption. After the decrypting operation is completed, a playback unit is used to access the multimedia data that has been decrypted for perform a playback operation.
    Type: Application
    Filed: March 2, 2005
    Publication date: November 10, 2005
    Inventors: Wen-Chieh Lee, Chi-Min Liu, Tsun-Chung Yang
  • Publication number: 20050249363
    Abstract: A signal processing method for audio signal compensation that corrects the high frequency audio signals while displaying music being removed with the high frequency audio signals is disclosed. When music being deleted with high-frequency audio signal is displayed, the deleted high-frequency audio signals are compensated by this method. At first, a first audio signal is inputted. Then increase output speed of the received first audio signal for outputting and producing a second audio signal. Sample a high frequency audio signal from the second audio signal and use this high frequency audio signal in compensation of the first audio signal, then output the compensated audio signal. Thus the quality of audio signals is improved and audio enjoyment for audience is increased.
    Type: Application
    Filed: April 28, 2005
    Publication date: November 10, 2005
    Inventors: Wen-Chieh Lee, Chi-Min Liu
  • Publication number: 20050237836
    Abstract: A method of operating a memory device including an array of cells formed in rows and columns that comprises providing a control signal, activating the control signal, the activated control signal including a first state and a second state, continuously performing access cycles in response to the first state of the activated control signal in one part of a period, and continuously performing refresh cycles in response to the second state of the activated control signal in another part of the period.
    Type: Application
    Filed: April 22, 2004
    Publication date: October 27, 2005
    Inventors: Hong-Gee Fang, Wen-Chieh Lee, Wei-Chieh Wu, Ching-Wen Chen
  • Publication number: 20050152684
    Abstract: A system and method of a DVD player for displaying multiple subtitles includes a loading platform for reading digital data of DVD storage media; an interface management platform of receiving end for transmitting a decoded message of a first subtitle set image to a comparison platform. The comparison platform is for checking whether control signal of the first subtitle set image from the loading platform exists in an accumulator register. If not, the digital data is analyzed and decoded through an analytic platform and a decoder platform according to an identifying code of data flow and the first subtitle set image control signal. Then a mixed digital video signal and a digital audio signal are outputted by an image construct platform and an output platform.
    Type: Application
    Filed: January 7, 2005
    Publication date: July 14, 2005
    Inventors: Eldon Liu, Wen-Chieh Lee
  • Patent number: 6862203
    Abstract: A semiconductor memory with shielding effect is disclosed in the invention. The memory includes at least a plurality of word lines, one ground line control unit, and a plurality of memory units. Every memory unit includes a primary bit line, a ground line, a first equivalent switch, and a second equivalent switch. The primary bit line is enabled by a control signal. The ground line and the ground line control unit are electrically connected. The first equivalent switch is coupled to both the primary bit line and the ground line, and is controlled by the control signal of the previous memory unit. The second equivalent switch is coupled to both the primary bit line and the ground line of the next memory unit, and is controlled by the control signal of the next memory unit.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: March 1, 2005
    Assignee: Macronix International Co., Ltd.
    Inventors: Wen-Chieh Lee, Chang-Ting Chen
  • Publication number: 20050040895
    Abstract: A low power consumption oscillation circuit and a delay circuit thereof are disclosed. The circuit comprises an enable circuit, an oscillator delay circuit and a feedback control network. The enable circuit is adapted for receiving an enable signal and performing an initial oscillation. The enable circuit outputs an initial oscillation signal according to a feedback control signal. The oscillator delay circuit is coupled to the enable circuit and is adapted for alternately generating a high and a low level oscillation signals according to the initial oscillation signal. The feedback control network is coupled to the oscillator delay circuit and is adapted for integrating the high and the low level oscillation signals to generate a feedback control signal and outputting the feedback control signal to the enable the circuit for activating next oscillation.
    Type: Application
    Filed: August 2, 2004
    Publication date: February 24, 2005
    Inventors: Hong-Gee Fang, Wen-Chieh Lee, Chih-Yuan Cheng
  • Publication number: 20040240247
    Abstract: A semiconductor memory with shielding effect is disclosed in the invention. The memory includes at least a plurality of word lines, one ground line control unit, and a plurality of memory units. Every memory unit includes a primary bit line, a ground line, a first equivalent switch, and a second equivalent switch. The primary bit line is enabled by a control signal. The ground line and the ground line control unit are electrically connected. The first equivalent switch is coupled to both the primary bit line and the ground line, and is controlled by the control signal of the previous memory unit. The second equivalent switch is coupled to both the primary bit line and the ground line of the next memory unit, and is controlled by the control signal of the next memory unit.
    Type: Application
    Filed: September 10, 2003
    Publication date: December 2, 2004
    Inventors: Wen-Chieh Lee, Chang-Ting Chen
  • Publication number: 20040002859
    Abstract: A method of digital coding transforms input audio signals into a sequence of frequency samples representing a spectral composition of the audio signals, and quantizes the sequence of frequency samples into quantized values according to a bit allocation process which uses a parameter predictor to evaluate quantization parameters by referring to a masking threshold. The quantized values are encoded into a number of bits of encoded data. An iterative rate control loop adjusts the quantization parameters and the quantization step size if the number of bits in the encoded data exceeds a prescribed number of bits available for the encoded data. The method may also cut off high frequency components of the input audio signals according to a cut-off frequency determined by the iterative rate control loop before quantizing the sequence of frequency samples.
    Type: Application
    Filed: June 26, 2002
    Publication date: January 1, 2004
    Inventors: Chi-Min Liu, Wen-Chieh Lee