Patents Assigned to Raydium Semiconductor Corporation
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Patent number: 8004512Abstract: A power-on screen pattern correcting apparatus is for correcting start output data of output terminals of a source driver such that a power-on screen pattern of a display is substantially uniform. The correcting apparatus comprises a flip-flop, a first logic unit and a second logic unit. The flip-flop controls a level of an inner signal to be substantially equal to a low signal level in response to a low level of a power start signal. The first logic unit enables a first signal in response to the low level of the inner signal or a low level of a high-impedance control signal. The second logic unit enables a second signal such that the output terminals are coupled to a charge sharing line and the power-on screen pattern is uniform in response to the low level of the inner signal or a low level of a charge-sharing control signal.Type: GrantFiled: January 24, 2008Date of Patent: August 23, 2011Assignee: Raydium Semiconductor CorporationInventors: Yong-Nien Rao, Ko-Yang Tso, Hui-Wen Miao, Chin-Chieh Chao
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Patent number: 7974054Abstract: An integrated circuit with an electrostatic discharge protection circuit includes a first power pad, a second power pad, at least a circuit module, and a power clamp circuit. The circuit module includes a signal pad, an internal circuit and a first bipolar transistor. A first parasitical resistance is coupled between a collector of the first bipolar transistor and the second power pad. There is at least a metal-oxide semiconductor (MOS) transistor and at least a first parasitical bipolar transistor included within the power clamp circuit.Type: GrantFiled: October 2, 2008Date of Patent: July 5, 2011Assignee: Raydium Semiconductor CorporationInventors: Ching-Jung Yang, Kun-Tai Wu
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Publication number: 20110122102Abstract: An output buffer including a first switch circuit and a buffer is provided. The first switch circuit receives first and second input signals. The buffer circuit includes first and second input stages, first and second output stages and a second switch circuit. The first and the second input stages are coupled to the first switch circuit. The first and the second output stages are coupled to the second switch circuit. The second switch circuit, coupled to the first and the second input stages and the first and the second output stages, selectively couples one of first and the second input stages to the first output stage and selectively couples the other to the second output stage. The first switch circuit further selectively provides one of the first and the second input signals to the first input stage and selectively provides the other to the second input stage.Type: ApplicationFiled: October 7, 2010Publication date: May 26, 2011Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventors: Ko-Yang Tso, Hui-Wen Miao, Yu-Lung Lo, Yann-Hsiung Liang, Hsin-Yeh Wu
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Publication number: 20110115503Abstract: A capacitance measurement circuit includes: a reference capacitor selectively coupled to a first reference voltage or a second reference voltage; a sensor capacitor selectively coupled to the first reference voltage or the second reference voltage; an operation amplifier coupled to the reference capacitor, the sensor capacitor and a third reference voltage; an approximation unit coupled to the operation amplifier; and a conversion unit coupled to the operation amplifier and the approximation unit. The reference capacitor and the sensor capacitor respectively couple a first charge amount and a second charge amount to a first input terminal of the operational amplifier to conduct an input voltage. The conversion unit couples a third charge amount to the first input terminal of the operation amplifier or charges/discharges the first input terminal of the operation amplifier until the input voltage approximates the third reference voltage.Type: ApplicationFiled: November 16, 2010Publication date: May 19, 2011Applicant: Raydium Semiconductor CorporationInventors: Shih-Tzung Chou, Yong-Nien Rao, Yu Kuang
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Publication number: 20110102404Abstract: A low power driving method for a display panel and a driving circuit therefor. When the voltage of a corresponding common electrode of a pixel in a pixel array is changed from one of the first voltage and the second voltage to the other thereof according to a polarity signal, the voltage of the corresponding pixel electrode of the pixel is driven. In an embodiment, a data code for the pixel and the polarity signal are utilized to predict a trend of the corresponding target voltage of the data code, and the voltage of the pixel electrode or the data line is changed to a voltage close to the target voltage of the pixel according to the prediction result. Thus, the swing range of the voltage of the data line can be efficiently reduced, and power saving and reduction in transition time can also be achieved.Type: ApplicationFiled: August 25, 2010Publication date: May 5, 2011Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventor: Chun-Lin Hou
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Publication number: 20110074446Abstract: A capacitance measurement circuit includes an operation amplifier; a reference capacitor having a first terminal coupled to a first input terminal of the operation amplifier and a second terminal selectively coupled to a first or second reference voltage; a sensor capacitor having a first terminal coupled to a second input terminal of the operation amplifier and a second terminal selectively coupled to the first or second reference voltage; an approximation unit having an output terminal and an input terminal coupled to an output terminal of the operation amplifier; a conversion unit having an output terminal and an input terminal coupled to the output terminal of the approximation unit; and a coupling capacitor having a first terminal coupled to the first or second input terminal of the operation amplifier and a second terminal coupled to the output terminal of the conversion unit.Type: ApplicationFiled: September 17, 2010Publication date: March 31, 2011Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventors: Shih-Tzung Chou, Yong-Nien Rao, Yu Kuang
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Publication number: 20110069045Abstract: A driving circuit applied in an electronic display apparatus is provided. The driving circuit includes a first exchange circuit and a first buffer. The first buffer includes first and second input stages, a second exchange circuit and first and second output stages. The first exchange circuit selectively couples a first input signal and a first output signal outputted from the first output stage to one of the first and the second input stages; and selectively couples a second input signal and a second output signal outputted from the second output stage to the other of the first and the second input stages. The second exchange circuit selectively couples the first input stage to one of the first and the second output stages and selectively couples the second input stage to the other of the first and the second output stages.Type: ApplicationFiled: August 5, 2010Publication date: March 24, 2011Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventors: Chih-Chuan Huang, Yu-Lung Lo, Hsin-Yeh Wu
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Publication number: 20110063249Abstract: A touch sensing apparatus applied to a capacitance touch panel includes a sensing module, a signal generating module, a comparing module, and a processing module. When a first and a second touch point formed on the capacitance touch panel correspond to two first and second touch pad sets, the sensing module generates a request signal. The signal generating module respectively outputs two test signals with reverse phases to the two first touch pad sets according to the request signal. After the comparing module generates a compared result according to two voltage values corresponding to the two second touch pad sets, the processing module will determine the positions of the first and the second touch point according to the compared result. When touch points are more than two, the touch sensing apparatus repeats the above-mentioned steps until all positions of the touch points are defined and the ghost points are removed.Type: ApplicationFiled: September 14, 2010Publication date: March 17, 2011Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventors: Shih Tzung Chou, Yong Nien Rao, Zong Lin Wu, Yu Kuang
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Publication number: 20110050664Abstract: A method for generating chopper-stabilized signals includes the following steps. First, a voltage polarity control signal is received. Next, the voltage polarity control signal is sampled to obtain a sampling signal, and a voltage transformation manner of the voltage polarity inversion of the voltage polarity control signal is judged according to the sampling signal. Then, a frame transformation signal template is obtained according to the voltage transformation manner of the voltage polarity inversion of the voltage polarity control signal and the sampling signal. Next, the frame transformation signal template is compared with the sampling signal and a frame transformation signal is generated. Then, a first chopper-stabilized signal is outputted according to the frame transformation signal and the voltage polarity control signal.Type: ApplicationFiled: November 11, 2010Publication date: March 3, 2011Applicant: Raydium Semiconductor CorporationInventor: Yong-Nien RAO
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Patent number: 7897026Abstract: A fluid particle-separating device includes a sorting, first and second diverting channels, a detector, a microprocessor, first and second actuators, and first and second sieving valves. The sorting channel receives fluid containing first and second particles. The first and second diverting channels guide the first and second particles. The detector recognizes the sizes and numbers of the first and second particles and outputs first and second recognition signals. The microprocessor receives the first and second recognition signals and outputs first and second control signals. The first and second sieving valves respectively inside the first and second diverting channels allow the particles to pass through or not. The first actuator receives the first control signal and controls the deformation of the second sieving valve to block the first particle. The second actuator receives the second control signal and controls the deformation of the first sieving valve to block the second particle.Type: GrantFiled: July 31, 2007Date of Patent: March 1, 2011Assignee: Raydium Semiconductor CorporationInventors: Chung-Cheng Chou, Wai William Wang
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Publication number: 20110012868Abstract: An optical touch apparatus includes an inputting interface, an optical module, a light receiving module, and a processing module. The inputting interface includes a surface and a light transmitting unit under the surface. The optical module and the light receiving module are set on a first side and a second side of the inputting interface. The optical module receives an incident beam and generates a plurality of parallel sensing lights according to the incident beam. When the plurality of parallel sensing lights pass the light transmitting unit to the light receiving module, the light receiving module generates a sensing result according to the condition the light receiving module receives the plurality of sensing lights. The processing module determines a touch point position formed on the surface according to the sensing result.Type: ApplicationFiled: June 10, 2010Publication date: January 20, 2011Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventors: Meng Shin Yen, William Wang, Chung Cheng Chou
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Patent number: 7863873Abstract: A power management circuit includes a regulator circuit, a first frequency compensation circuit, a first switch circuit and a detection circuit. The regulator circuit includes a signal output end. The first switch circuit is turned on in response to an enabled first control signal such that the first frequency compensation circuit is coupled to the regulator circuit. The detection circuit determines whether an output capacitor is coupled to the signal output end, and generates the enabled first control signal to turn on the first switch circuit and connect the first frequency compensation circuit to the regulator circuit when the output capacitor is not coupled to the signal output end. Therefore, the regulator circuit is frequency compensated by the first frequency compensation circuit.Type: GrantFiled: August 18, 2008Date of Patent: January 4, 2011Assignee: Raydium Semiconductor CorporationInventors: Chun-Lin Hou, Yong-Nien Rao
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Publication number: 20100315380Abstract: An optical touch apparatus is disclosed. The optical touch apparatus comprises a light emitting module, a noise suppressing module, a light sensing module, and a processing module. The light emitting module emits at least one sensing beam, and the at least one sensing beam comprises a plurality of sensing rays. If an emitting angle of a specific sensing ray among the plurality of sensing rays toward a light sensor of the light sensing module is larger than a default value, the noise suppressing module will block the specific sensing ray from emitting into the light sensor. After the light sensing module generates a sensing result according to the condition of the light sensing module receiving the at least one sensing beam, the processing module will determine the position of a touch point according to the sensing result.Type: ApplicationFiled: June 10, 2010Publication date: December 16, 2010Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventors: Meng Shin Yen, William Wang, Chung Cheng Chou
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Patent number: 7838819Abstract: An apparatus of generating optical tweezers with momentum is provided for providing optical tweezers with a first momentum on a test piece. The apparatus comprises a laser source, a diffractive optical element (DOE) and a lens. The laser source is for outputting a laser beam. The DOE has a first phase-delay picture, and the laser beam forms a diffraction pattern after passing the first phase-delay picture. The lens is for receiving and focusing the diffraction pattern on the test piece to form the first optical tweezers with the first momentum. The lens has an optical axis intersecting the DOE at an optical intersection point, a geometric center of the phase-delay picture has a displacement vector relative to the optical intersection point and a direction of the first momentum is related to a direction of the displacement vector.Type: GrantFiled: January 24, 2008Date of Patent: November 23, 2010Assignee: Raydium Semiconductor CorporationInventors: Long Hsu, Cheng-Hsien Liu, Sheng-Yang Tseng, Chung-Cheng Chou, Wai William Wang, Fung-Hsu Wu, Chen Peng, Ta-Yuan Lee
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Patent number: 7829388Abstract: The invention discloses an integrated circuit package. The integrated circuit package comprises a substrate having a first surface and a second surface opposite thereto and a first hole passing through the substrate from the first surface to the second surface. A plurality of conductive lines is disposed on a portion of the second surface of the substrate. A semiconductor chip is disposed above the second surface of the substrate, wherein a chamber is formed between the semiconductor chip and the substrate. A plurality of bonding pads are disposed on a side of the semiconductor chip which is toward the second surface of the substrate, wherein at least one of the bonding pads are electrically connected to one of the plurality of conductive lines. A first heat dissipation layer is disposed in the first hole, and extends into the chamber. A method for fabricating the integrated circuit package is also provided.Type: GrantFiled: January 26, 2010Date of Patent: November 9, 2010Assignee: Raydium Semiconductor CorporationInventors: Chin-Yung Chen, Chia-Hung Hsu, William Wang, Chung-Cheng Chou
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Publication number: 20100277413Abstract: A data inputting apparatus includes a plurality of keyswitches, an optical module, a sensing module and a processing module. The keyswitches are disposed on the data inputting apparatus. The optical module is disposed on a first side of the data inputting apparatus and is used for emitting a plurality of lights along a first direction, and the lights are corresponding to the keyswitches respectively. The sensing module is disposed on a second side opposite to the first side and is used for receiving the lights and generating a sensing result. The processing module is coupled to the sensing module. When one of the keyswitches is pressed, one of the lights is blocked by the pressed keyswitch resulting in the sensing module adjusting the sensing result, and the position of the pressed keyswitch is determined by the processing module based on the sensing result.Type: ApplicationFiled: March 10, 2010Publication date: November 4, 2010Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventors: William Wang, Meng Shin Yen, Chung Cheng Chou
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Publication number: 20100265216Abstract: An optical touch apparatus is disclosed. The optical touch apparatus comprises at least one light sensing module and a processing module. The at least one light sensing module is set at a first side of a surface of the optical touch apparatus, and used for receiving at least one light and generating a sensing result according to the condition of receiving the at least one light. The sensing result relates to whether the at least one light is blocked by at least one object above the surface and also relates to a comparing result between the at least one object and a reference region. The reference region is set at an opposite second side of the surface. The processing module determines at least one touch point position corresponding to the at least one object on the surface according to the sensing result.Type: ApplicationFiled: March 10, 2010Publication date: October 21, 2010Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventors: Meng Shin Yen, William Wang, Chung Cheng Chou
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Patent number: 7804058Abstract: An optical tweezers controlling device including a light source, an objective lens and a focus adjusting unit is provided. The focus adjusting unit disposed between the light source and the objective lens includes a mirror set and a zoom lens set. The mirror set has at least a mirror. The mirror is rotatable such that after a light of the light source is projected to the mirror, the reflective direction of the light reflected from the mirror is changeable. The zoom lens set has at least a zoom lens disposed in accordance with the mirror. By rotating the mirror or changing the focal length of the zoom lens, the focusing location of the light changes on the focal plane of the objective lens or in the front or the rear of the focal plane.Type: GrantFiled: August 6, 2008Date of Patent: September 28, 2010Assignee: Raydium Semiconductor CorporationInventors: Long Hsu, Cheng-Hsien Liu, Sheng-Yang Tseng, Ai-Tang Chang, Chung-Cheng Chou, William Wang, Fung-Hsu Wu, Chen Peng, Ta-Yuan Lee
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Patent number: 7804169Abstract: The invention discloses an integrated circuit package. The integrated circuit package comprises a substrate having a first surface and a second surface opposite thereto and a first hole passing through the substrate from the first surface to the second surface. A plurality of conductive lines is disposed on a portion of the second surface of the substrate. A semiconductor chip is disposed above the second surface of the substrate, wherein a chamber is formed between the semiconductor chip and the substrate. A plurality of bonding pads are disposed on a side of the semiconductor chip which is toward the second surface of the substrate, wherein at least one of the bonding pads are electrically connected to one of the plurality of conductive lines. A first heat dissipation layer is disposed in the first hole, and extends into the chamber. A method for fabricating the integrated circuit package is also provided.Type: GrantFiled: April 14, 2008Date of Patent: September 28, 2010Assignee: Raydium Semiconductor CorporationInventors: Chin-Yung Chen, Chia-Hung Hsu, William Wang, Chung-Cheng Chou
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Patent number: 7786432Abstract: An apparatus and a method for changing optical tweezers are provided. The apparatus includes a diffractive optical element (DOE), a mask unit and an objective lens. The DOE includes a plurality of phase delay patterns. The mask unit includes a plurality of mask patterns that correspond to the phase delay patterns, respectively, wherein at least a portion of the mask patterns are complementary. A laser beam passing through each phase diffractive pattern correspondingly passes through each mask pattern to generate a compound diffractive pattern. The objective lens receives the compound diffractive pattern and focuses it on an examining object to form an optical tweezers.Type: GrantFiled: August 6, 2008Date of Patent: August 31, 2010Assignee: Raydium Semiconductor CorporationInventors: Long Hsu, Cheng-Hsien Liu, Sheng-Yang Tseng, Chung-Cheng Chou, William Wang, Fung-Hsu Wu, Chen Peng, Ta-Yuan Lee