Patents by Inventor Chien-Yu Chan
Chien-Yu Chan 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: 11361706Abstract: A micro-LED display system is disclosed. The micro-LED display system includes a host, a plurality of row/column drivers and a plurality of ?ICs. The row/column drivers are coupled to the host through serial interfaces and used to provide a plurality of row clock signals and a plurality of column data signals respectively. The ?ICs are arranged as a matrix including columns of ?ICs and rows of ?ICs receiving the column data signals and the row clock signals respectively. All ?ICs in the same column of ?ICs are cascaded in order and all ?ICs in the same row of ?ICs are cascaded in order.Type: GrantFiled: January 8, 2021Date of Patent: June 14, 2022Assignee: Raydium Semiconductor CorporationInventors: Kuan-Hsien Lee, Chien-Yu Chan, Yann-Hsiung Liang, Yu-Lung Lo
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Publication number: 20210217354Abstract: A micro-LED display system is disclosed. The micro-LED display system includes a host, a plurality of row/column drivers and a plurality of ?ICs. The row/column drivers are coupled to the host through serial interfaces and used to provide a plurality of row clock signals and a plurality of column data signals respectively. The ?ICs are arranged as a matrix including columns of ?ICs and rows of ?ICs receiving the column data signals and the row clock signals respectively. All ?ICs in the same column of ?ICs are cascaded in order and all ?ICs in the same row of ?ICs are cascaded in order.Type: ApplicationFiled: January 8, 2021Publication date: July 15, 2021Inventors: Kuan-Hsien Lee, Chien-Yu Chan, Yann-Hsiung Liang, Yu-Lung Lo
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Patent number: 8816988Abstract: The present invention provides a touch sensing apparatus including a plurality of pins, a logic control module, and at least one driving/sensing control module. The logic control module generates a plurality of control signals having different control timings. Each driving/sensing control module is coupled with the logic control module and the pins, wherein the driving/sensing control module receives a first control signal of the control signals from the logic control module and controls the pins to execute a plurality of pin functions according to a first control timing of the first control signal, so that the pins simultaneously sense a plurality of analog data from a conductive thin film sensor.Type: GrantFiled: December 9, 2011Date of Patent: August 26, 2014Assignee: Raydium Semiconductor CorporationInventors: Chien-Yu Chan, Chien-Kuo Wang, Shang-Ping Tang, Ko-Yang Tso
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Patent number: 8773379Abstract: A touch sensing apparatus is disclosed. The touch sensing apparatus includes a logic control module, at least one storage control module, and at least one decoding control module. The logic control module is used to generate a plurality of control signals having different control timings. The plurality of control signals includes a storage control signal and a decoding control signal. Each storage control module includes a plurality of storage capacitors, and respectively stores each of sensed voltages in different storage capacitors at different times according to a storage control timing of the storage control signal. The sensed voltages are analog data sensed from scan lines of an ITO sensor. The decoding control module is used to decode the sensed voltages stored in the storage capacitors according to a decoding control timing of the decoding control signal to output the decoded analog data.Type: GrantFiled: December 29, 2011Date of Patent: July 8, 2014Assignee: Raydium Semiconductor CorporationInventors: Chien-Yu Chan, Chien-Kuo Wang, Shang-Ping Tang, Ko-Yang Tso
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Patent number: 8743067Abstract: A touch sensing apparatus is disclosed. The touch sensing apparatus includes a logic control module, at least one storage control module, and at least one decoding control module. The logic control module is used to generate a plurality of control signals having different control timings. The plurality of control signals includes a storage control signal and a decoding control signal. Each storage control module includes a plurality of storage capacitors, and respectively stores each of sensed voltages in different storage capacitors at different times according to a storage control timing of the storage control signal. The sensed voltages are analog data sensed from scan lines of an ITO sensor. The decoding control module performs analog adding process to the sensed voltages stored in the storage capacitors according to a decoding control timing of the decoding control signal to output decoded analog data with high signal-to-noise ratio (SNR).Type: GrantFiled: December 29, 2011Date of Patent: June 3, 2014Assignee: Raydium Semiconductor CorporationInventors: Chien-Yu Chan, Chien-Kuo Wang, Shang-Ping Tang, Hung Li, Ko-Yang Tso
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Publication number: 20130044064Abstract: A touch control sensing apparatus comprises a logic control module configured to generate a plurality of control signals, a driving sensing control module having a parallel sensing control unit coupled to the logic control module, a signal comparing module having at least one amplifier and a signal selecting unit coupled to the logic control module, and a parallel to serial control module coupled to the logic control module and an analog-digital converter, wherein the analog-digital converter is coupled between the logic control module and the parallel to serial control module.Type: ApplicationFiled: December 20, 2011Publication date: February 21, 2013Applicant: Raydium Semiconductor CorporationInventor: Chien Yu CHAN
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Publication number: 20130027317Abstract: A method for providing digital sensing data for a touch panel apparatus comprises the steps of: collecting a stream of digital sensing data from a plurality of operational amplifiers of a touch panel apparatus; generating a first revised digital datum to replace a first digital datum by summing the first digital datum and a digital datum following the first digital datum; generating a second revised digital datum to replace a second digital datum by summing the first revised digital datum and the second digital datum, wherein the second digital datum follows the first revised digital datum; and continuing to generate revised digital sensing data until a last revised digital datum is generated.Type: ApplicationFiled: July 28, 2011Publication date: January 31, 2013Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventors: Shua Shen HSIAO, Chiu Hsia Hsieh, Chien Yu Chan
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Publication number: 20130009885Abstract: A touch control sensing apparatus comprises a logic control module configured to generate a plurality of control signals, a driving sensing control module having a parallel sensing control unit coupled to the logic control module, a signal comparing module having at least one amplifier coupled to the logic control module, a parallel to serial control module coupled to the logic control module, and an analog digital convertor coupled between the logic control module and the parallel to serial control module.Type: ApplicationFiled: September 23, 2011Publication date: January 10, 2013Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventor: Chien Yu CHAN
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Publication number: 20120262395Abstract: An updating method for baseline output values of a touch-sensing panel is disclosed. The touch-sensing panel includes a plurality of X-directional lines and a plurality of Y-directional lines. The X-directional lines and Y-directional lines are arranged intersecting one another so as to form a sensing grid with a plurality of sensing nodes. The method includes the following steps: performing a first scan when the touch-sensing panel is not touched so as to obtain a plurality of first baseline output values; performing a second scan after the touch-sensing panel is touched so as to obtain plurality of touch output values; and updating the baseline output values on the sensing nodes based on a threshold, the first baseline output values and the touch output values.Type: ApplicationFiled: April 10, 2012Publication date: October 18, 2012Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventor: CHIEN YU CHAN
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Publication number: 20120256855Abstract: The disclosure provides a driving and sensing method for a touch-sensing input device including a touch-sensing panel module and a liquid crystal display panel module. The touch-sensing panel module includes a touch-sensing panel and a control device, wherein the touch-sensing panel includes a plurality of X-directional lines and Y-directional lines arranged intersecting one another. The method includes steps of generating a spread spectrum clock signal using the control device; generating a driving signal and a sensing signal based on the spread spectrum clock signal; outputting the driving signal to one of the X-directional lines or one of the Y-directional lines; receiving voltages on the corresponding Y-directional line or X-directional line in response to the sensing signal and converting the same to a digital signal; and determining a touch status of the touch-sensing panel based on the digital signal.Type: ApplicationFiled: March 26, 2012Publication date: October 11, 2012Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventors: CHIEN YU CHAN, SHANG PING TANG
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Publication number: 20120256853Abstract: The present invention discloses a detection method for a touch input device. The touch input device includes a touch panel and a control device. The touch panel includes a plurality of X-directional lines and a plurality of Y-directional lines, which are arranged intersecting one another. The method includes the steps of: configuring the X-directional lines as scan lines and the Y-directional lines as sense lines; dividing the scan lines into a plurality of groups of scan lines; during each scanning operation, outputting a driving signal to one of the plurality of groups of scan lines; after each scanning operation, receiving voltages on the sense lines and converting the voltages into a plurality of digital signals; storing the digital signals into a storage unit; and determining a touch status based on the digital signals.Type: ApplicationFiled: February 24, 2012Publication date: October 11, 2012Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventor: CHIEN YU CHAN
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Patent number: 8259774Abstract: A spread spectrum clock signal generator for spreading an input clock signal into an output clock signal includes a clock signal delay chain for delaying the input clock signal into a delay clock signal group having a plurality of delay clock signals, a modulation controller for outputting a counter clock signal control signal, a clock signal selection circuit for selecting, from the delay clock signal group, a modulation clock signal group having a plurality of modulation clock signals, a programmable counter for generating a counting value according to a counter clock signal, and a clock signal output unit for combining the modulation clock signals into the output clock signal according to the counting value, and further generating the counter clock signal, outputted to the programmable counter, according to the counter clock signal control signal.Type: GrantFiled: June 4, 2009Date of Patent: September 4, 2012Assignee: Raydium Semiconductor CorporationInventors: Chien-Yu Chan, Shao-Ping Hung, Jun-Ren Shih
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Publication number: 20120206389Abstract: A touch sensing apparatus includes a plurality of pins, a logic control module, and at least one amplifier module. The logic control module generates a plurality of control signals having different control timings, wherein the control signals include an amplifying control signal and a compensating control signal. Each amplifying module includes an amplifying unit and an automatic compensating unit. The amplifying unit includes a positive input end and a negative input end, wherein the amplifying unit determines, according to the amplifying control signal, a difference between a first sensing voltage and a second sensing voltage respectively received by the positive input end and the negative input end and amplifies the difference to output an analog data. The automatic compensating unit records, according to the compensating control signal, a digital compensation value corresponding to one of the pins and outputs the digital compensation value according to the compensating control signal.Type: ApplicationFiled: February 9, 2012Publication date: August 16, 2012Inventors: Chien-Yu Chan, Chien-Kuo Wang, Sien-Chun Liu, Hung Li, Ko-Yang Tso
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Publication number: 20120206404Abstract: A touch sensing apparatus includes a logic control module and at least one input control module. The logic control module generates a plurality of control signals having different control timings, wherein the control signals include an input control signal. The input control module is coupled with the logic control module, wherein each input control module includes a positive input switch and a negative input switch. The input control module controls, according to the input control signal, the positive input switch and the negative input switch to be deactivated or activated to control an input mode of a first sensing voltage and a second sensing voltage, which are analog data respectively sensed through a first sensing line and a second sensing line of a conductive thin film sensor, wherein the first sensing line and the second sensing line are sensing lines of adjacent channels.Type: ApplicationFiled: February 9, 2012Publication date: August 16, 2012Inventors: Chien-Yu Chan, Chein-Kuo Wang, Jen-Hung Tung, Hung Li, Ko-Yang Tso
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Publication number: 20120169662Abstract: A touch sensing apparatus is disclosed. The touch sensing apparatus includes a logic control module, at least one storage control module, and at least one decoding control module. The logic control module is used to generate a plurality of control signals having different control timings. The plurality of control signals includes a storage control signal and a decoding control signal. Each storage control module includes a plurality of storage capacitors, and respectively stores each of sensed voltages in different storage capacitors at different times according to a storage control timing of the storage control signal. The sensed voltages are analog data sensed from scan lines of an ITO sensor. The decoding control module performs analog adding process to the sensed voltages stored in the storage capacitors according to a decoding control timing of the decoding control signal to output decoded analog data with high signal-to-noise ratio (SNR).Type: ApplicationFiled: December 29, 2011Publication date: July 5, 2012Inventors: Chien-Yu Chan, Chien-Kuo Wang, Shang-Ping Tang, Hung Li, Ko-Yang Tso
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Publication number: 20120169657Abstract: The present invention provides a touch sensing apparatus including a plurality of pins, a logic control module, and at least one driving/sensing control module. The logic control module generates a plurality of control signals having different control timings. Each driving/sensing control module is coupled with the logic control module and the pins, wherein the driving/sensing control module receives a first control signal of the control signals from the logic control module and controls the pins to execute a plurality of pin functions according to a first control timing of the first control signal, so that the pins simultaneously sense a plurality of analog data from a conductive thin film sensor.Type: ApplicationFiled: December 9, 2011Publication date: July 5, 2012Inventors: Chien-Yu Chan, Chien-Kuo Wang, Shang-Ping Tang, Ko-Yang Tso
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Publication number: 20120169641Abstract: A touch sensing apparatus includes a logic control module, a plurality of storage capacitors, at least one decoding control module, and at least one differential amplifier. The logic control module generates a plurality of control signals having different control timings, wherein the control signals comprise a decoding control signal. The decoding control module is coupled with the logic control module and the storage capacitors and decodes according to a decoding control timing of a decoding control signal and outputs a first sensing voltage and a second sensing voltage of the storage capacitors. The differential amplifier is coupled with the decoding control module and calculates a voltage variance between the first sensing voltage and the second sensing voltage to output an amplified analog data.Type: ApplicationFiled: January 4, 2012Publication date: July 5, 2012Inventors: Chien-Kuo Wang, Chien-Yu Chan
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Publication number: 20120169654Abstract: A touch sensing apparatus includes a plurality of pins, a logic control module, and at least one driving/sensing module. The driving/sensing control module is coupled with the pins and the logic control module. The driving/sensing control module controls the pins to execute a driving function according to a driving control signal at high voltage level and output a high voltage to a conductive thin film sensor. The driving/sensing control module includes an isolating switch, a high voltage device, and a medium/low voltage device, wherein the isolating switch is coupled with the high voltage device and the medium/low voltage device. The driving/sensing control module activates the isolating switch according to a isolating control signal at high voltage level to isolate the medium/low voltage device from the high voltage device for avoiding the high voltage from entering into the medium/low device that results in the damage of the medium/low voltage device.Type: ApplicationFiled: November 10, 2011Publication date: July 5, 2012Inventors: Chien-Yu Chan, Hung Li
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Publication number: 20120169661Abstract: A touch sensing apparatus is disclosed. The touch sensing apparatus includes a logic control module, at least one storage control module, and at least one decoding control module. The logic control module is used to generate a plurality of control signals having different control timings. The plurality of control signals includes a storage control signal and a decoding control signal. Each storage control module includes a plurality of storage capacitors, and respectively stores each of sensed voltages in different storage capacitors at different times according to a storage control timing of the storage control signal. The sensed voltages are analog data sensed from scan lines of an ITO sensor. The decoding control module is used to decode the sensed voltages stored in the storage capacitors according to a decoding control timing of the decoding control signal to output the decoded analog data.Type: ApplicationFiled: December 29, 2011Publication date: July 5, 2012Inventors: Chien-Yu Chan, Chien-Kuo Wang, Shang-Ping Tang, Ko-Yang Tso
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Publication number: 20100110115Abstract: A frame rate control (FRC) method is provided for driving a number of pixels according to a number of pixels data. The pixels include a number of first color sub-pixels. In this method, the dithering process is performed to the pixels data in two frames according to two basic matrixes respectively. In one of the two frames, the numbers of the first color sub-pixels, driven by the positive pixel voltages and the negative pixel voltages and to which the dithering process has been performed, are the same in substantiality. Further, in the other of the two frames, the numbers of the first color sub-pixels, driven by the positive pixel voltages and the negative pixel voltages and to which the dithering process has been performed, are also the same in substantiality.Type: ApplicationFiled: November 4, 2009Publication date: May 6, 2010Applicant: Raydium Semiconductor CorporationInventors: Hung Li, Chien-Yu Chan, Jun-Ren Shih