Patents by Inventor Shih-Fang Chen
Shih-Fang Chen 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: 7738333Abstract: An optical disk drive of recording a re-writable optical disk and the method thereof. First, an optimum power is determined. A gain of a SBAD (Sub Beam Adder) signal is adjusted for generating an calibrated SBAD signal such that the calibrated SBAD signal maintains at the same level during a write power phase and a read power phase substantially. Then, the re-writable optical disk is recorded by using the optimum power. Next, a defect of the re-writable optical disk is detected according to the calibrated SBAD signal. Then, the optical disk drive will jump over the defect and prevent it from being data-recorded so as to avoid system malfunction.Type: GrantFiled: January 28, 2008Date of Patent: June 15, 2010Inventors: Shih-Fang Chen, Chin-Yin Tsai
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Publication number: 20090283822Abstract: A non-volatile memory structure includes a substrate having two doped regions, a charge-trapping structure positioned substantially between the two doped regions, and a conductive structure positioned on the charge-trapping structure, wherein the charge-trapping structure includes a silicon-oxy-nitride layer and metallic nano-dots embedded in the silicon-oxy-nitride layer. The non-volatile memory structure formed by performing a first thermal oxidation process to form a high-k dielectric layer on a substrate, forming a metal-containing semiconductor layer including silicon or germanium on the high-k dielectric layer, forming a silicon layer on the metal-containing semiconductor layer, and performing a second thermal oxidation process to convert the metal-containing semiconductor layer to a silicon-oxy-nitride layer with embedded metallic nano-dots, wherein at least one of the first thermal oxidation process and the second thermal oxidation process is performed in a nitrogen-containing atmosphere.Type: ApplicationFiled: May 16, 2008Publication date: November 19, 2009Applicant: PROMOS TECHNOLOGIES INC.Inventors: WAN TENG HSIEH, I HSUAN LIAO, SHIH FANG CHEN, TING CHANG CHANG, PENG BO XI, WEI REN CHEN
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Patent number: 7539101Abstract: The present invention provides a method for detecting disk defects of a blank optical disk in a recording and reproducing system when a data-recording operation is performed. In the embodiment, an ATIP and the carrier signal of the ATIP signal, ATFM signals, are compared to obtain a difference between these two signals. A wobble defect flag signal is set if the difference keeps higher than a predetermined threshold for a predetermined time interval. On the contrary, the wobble defect flag signal is cleared if the difference keeps lower than the predetermined threshold for the predetermined time interval.Type: GrantFiled: January 14, 2005Date of Patent: May 26, 2009Assignee: Tian Holdings, LLCInventors: Chin-Yin Tsai, Shih-Fang Chen, Yi-Lin Lai
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Publication number: 20090003163Abstract: An optical disk drive of recording a re-writable optical disk and the method thereof. First, an optimum power is determined. A gain of a SBAD (Sub Beam Adder) signal is adjusted for generating an calibrated SBAD signal such that the calibrated SBAD signal maintains at the same level during a write power phase and a read power phase substantially. Then, the re-writable optical disk is recorded by using the optimum power. Next, a defect of the re-writable optical disk is detected according to the calibrated SBAD signal. Then, the optical disk drive will jump over the defect and prevent it from being data-recorded so as to avoid system malfunction.Type: ApplicationFiled: January 28, 2008Publication date: January 1, 2009Inventors: Shih-Fang Chen, Chin-Yin Tsai
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Patent number: 7349310Abstract: An optical disk drive of recording a re-writable optical disk and the method thereof. First, an optimum power is determined. A gain of a SBAD (Sub Beam Adder) signal is adjusted for generating an calibrated SBAD signal such that the calibrated SBAD signal maintains at the same level during a write power phase and a read power phase substantially. Then, the re-writable optical disk is recorded by using the optimum power. Next, a defect of the re-writable optical disk is detected according to the calibrated SBAD signal. Then, the optical disk drive will jump over the defect and prevent it from being data-recorded so as to avoid system malfunction.Type: GrantFiled: November 17, 2004Date of Patent: March 25, 2008Assignee: Tian Holdings LLCInventors: Shih-Fang Chen, Chin-Yin Tsai
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Patent number: 7187638Abstract: The apparatus of detecting defects of the present invention includes: a photodetector, detecting a intensity of reflective laser beam and generating a reflective signal; a sample/hold circuit, coupling to the photodetector circuit, sampling and holding the reflective signal; a comparator, coupling to the sample/hold circuit, comparing the sampling and holding result with a default range; and a defect flag generating circuit, coupling to the comparator, generating a defect flag signal. The method of detecting defects of the present invention includes: monitoring a reflective signal (WRF signal) when recording an optical disk; determining if the static region of WRF signal is within a predetermined range; if no, the region is regarded as a defect region, and a defect flag is set.Type: GrantFiled: February 19, 2004Date of Patent: March 6, 2007Assignee: VIA Technologies, Inc.Inventors: Chin-Yin Tsai, Shih-Fang Chen
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Patent number: 7048603Abstract: A method for manufacturing organic light-emitting diodes (OLEDs) is disclosed, by adding nitrogen (N2) into the material of a hole transport layer (HTL) and evaporating the nitrogen and the material of the hole transport layer while growing the hole transport layer, so as to dope nitrogen molecules into the hole transport layer. In the hole transport layer, the nitrogen molecules are impurities of higher energy level, and are used to catch holes while the holes transports and trap the holes in the hole transport layer, thereby obtaining an object of improving the luminance efficiency of the organic light-emitting diodes with lower cost.Type: GrantFiled: November 25, 2003Date of Patent: May 23, 2006Assignee: National Cheng Kung UniversityInventors: Yean-Kuen Fang, William Lee, Jyh-Jier Ho, Shyh-Fann Ting, Shih-Fang Chen, Hsin-Che Chiang
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Publication number: 20050185549Abstract: The present invention provides a method for detecting disk defects of a blank optical disk in a recording and reproducing system when a data-recording operation is performed. In the embodiment, an ATIP and the carrier signal of the ATIP signal, ATFM signals, are compared to obtain a difference between these two signals. A wobble defect flag signal is set if the difference keeps higher than a predetermined threshold for a predetermined time interval. On the contrary, the wobble defect flag signal is cleared if the difference keeps lower than the predetermined threshold for the predetermined time interval.Type: ApplicationFiled: January 14, 2005Publication date: August 25, 2005Applicant: VIA TECHNOLOGIES, INC.Inventors: Chin-Yin Tsai, Shih-Fang Chen, Yi-Lin Lai
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Patent number: 6932009Abstract: A thread tension adjustment device of multi-needle sewing machine including: a fixing rack fixed on a housing of the sewing machine; multiple frame bodies side by side fixed on the fixing rack; multiple thread tension adjustment units mounted on the frame bodies, each thread tension adjustment unit serving to resiliently clamp a thread, multiple thread-loosening slide boards being respectively slidably disposed on the frame bodies, each thread-loosening slide board having multiple wedge sections; and a link pivotally connected with the thread-loosening slide boards for driving the thread-loosening slide boards to move the wedge sections thereof toward the corresponding thread tension adjustment units to release the threads clamped by the thread tension adjustment buttons of the thread tension adjustment units.Type: GrantFiled: May 21, 2004Date of Patent: August 23, 2005Assignee: Ching Chi Machine Co., Ltd.Inventor: Shih-Fang Chen
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Patent number: 6904853Abstract: A take-up cam phase adjustment structure of looper thread take-up apparatus of a sewing machine includes a rotary shaft rotatablly mounted in the sewing machine. A thread-guiding plate mounted on the housing for correspondingly pressing a stitching thread against the rim of the take-up cam. A transmission mechanism connected between the lower driving shaft and the rotary shaft. The transmission mechanism includes a driven wheel rotatablly mounted on the rotary shaft. The take-up cam phase adjustment structure includes a locking member for locking the driven wheel on the rotary shaft and a turning section disposed at one end of the rotary shaft. After the second locking member is unscrewed and loosened, by means of rotating the turning section, the relative radial positions between the take-up cam and the lower driving shaft is drivingly adjustable.Type: GrantFiled: September 9, 2003Date of Patent: June 14, 2005Assignee: Ching Chi Machine Co., Ltd.Inventor: Shih-Fang Chen
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Patent number: 6902982Abstract: A trench capacitor process for preventing parasitic leakage. The process is capable of blocking leakage current from a parasitic transistor adjacent to the trench, and includes the steps of forming a doping layer and a cap layer covering portions of the sidewall of the trench and performing an annealing process on the doping layer to form a dopant region in the substrate adjacent to each sidewall of the trench and blocks leakage current from a parasitic transistor adjacent to the trench.Type: GrantFiled: October 9, 2003Date of Patent: June 7, 2005Assignee: Promos Technologies Inc.Inventor: Shih-Fang Chen
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Publication number: 20050105431Abstract: An optical disk drive of recording a re-writable optical disk and the method thereof. First, an optimum power is determined. A gain of a SBAD (Sub Beam Adder) signal is adjusted for generating an calibrated SBAD signal such that the calibrated SBAD signal maintains at the same level during a write power phase and a read power phase substantially. Then, the re-writable optical disk is recorded by using the optimum power. Next, a defect of the re-writable optical disk is detected according to the calibrated SBAD signal. Then, the optical disk drive will jump over the defect and prevent it from being data-recorded so as to avoid system malfunction.Type: ApplicationFiled: November 17, 2004Publication date: May 19, 2005Inventors: Shih-Fang Chen, Chin-Yin Tsai
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Publication number: 20050101218Abstract: A method for manufacturing organic light-emitting diodes (OLEDs) is disclosed, by adding nitrogen (N2) into the material of a hole transport layer (HTL) and evaporating the nitrogen and the material of the hole transport layer while growing the hole transport layer, so as to dope nitrogen molecules into the hole transport layer. In the hole transport layer, the nitrogen molecules are impurities of higher energy level, and are used to catch holes while the holes transports and trap the holes in the hole transport layer, thereby obtaining an object of improving the luminance efficiency of the organic light-emitting diodes with lower cost.Type: ApplicationFiled: November 25, 2003Publication date: May 12, 2005Inventors: Yean-Kuen Fang, William Lee, Jyh-Jier Ho, Shyh-Fann Ting, Shih-Fang Chen, Hsin-Che Chiang
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Publication number: 20050051069Abstract: A take-up cam phase adjustment structure of looper thread take-up apparatus of a sewing machine includes a rotary shaft rotatablly mounted in the sewing machine. A thread-guiding plate mounted on the housing for correspondingly pressing a stitching thread against the rim of the take-up cam. A transmission mechanism connected between the lower driving shaft and the rotary shaft. The transmission mechanism includes a driven wheel rotatablly mounted on the rotary shaft. The take-up cam phase adjustment structure includes a locking member for locking the driven wheel on the rotary shaft and a turning section disposed at one end of the rotary shaft. After the second locking member is unscrewed and loosened, by means of rotating the turning section, the relative radial positions between the take-up cam and the lower driving shaft is drivingly adjustable.Type: ApplicationFiled: September 9, 2003Publication date: March 10, 2005Inventor: Shih-Fang Chen
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Publication number: 20040209436Abstract: A trench capacitor process for preventing parasitic leakage. The process is capable of blocking leakage current from a parasitic transistor adjacent to the trench, and includes the steps of forming a doping layer and a cap layer covering portions of the sidewall of the trench and performing an annealing process on the doping layer to form a dopant region in the substrate adjacent to each sidewall of the trench and blocks leakage current from a parasitic transistor adjacent to the trench.Type: ApplicationFiled: October 9, 2003Publication date: October 21, 2004Applicant: ProMOS Technologies Inc.Inventor: Shih-Fang Chen
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Publication number: 20040129965Abstract: A trench capacitor process for preventing parasitic leakage. The process is capable of blocking leakage current from a parasitic transistor adjacent to the trench, and includes forming a doping layer and a cap layer covering on part of the sidewall of the trench and performing an annealing process on the doping layer and forming a dopant region in the substrate adjacent to the sidewall of the trench, blocking leakage current from a parasitic transistor adjacent to the trench.Type: ApplicationFiled: April 2, 2003Publication date: July 8, 2004Inventor: Shih-Fang Chen
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Patent number: 6748888Abstract: A directly motor-driven structure of a sewing machine, including: a middle rotary shaft pivotally mounted in a middle section of the housing between the upper and lower driving shafts. A first transmission mechanism connected between the lower driving shaft and the middle rotary shaft. A second transmission mechanism connected between the upper driving shaft and the middle rotary shaft. The first transmission mechanism is spaced from the lower stitching needle by a first length. The second transmission mechanism is spaced from the upper stitching needle by a second length. The second length is smaller than the first length, whereby the sewing machine is formed with a recessed installation space adjacent to the second transmission mechanism. A driving motor is installed in the recessed installation space and directly fixedly connected with the upper driving shaft.Type: GrantFiled: June 25, 2003Date of Patent: June 15, 2004Assignee: Ching Chi Machines Co., Ltd.Inventor: Shih-Fang Chen
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Patent number: 6712015Abstract: An oblique thread-guiding link of a sewing machine, including a swing arm having a front swing arm and a rear swing arm and formed with a central shaft hole. A pivot shaft is fixedly fitted in the shaft hole of the swing arm. Two ends of the pivot shaft are obliquely pivotally mounted in two opposite sidewalls of the housing of the sewing machine. One end of the pivot shaft protrudes from the housing of the sewing machine. The front end of the front swing arm is positioned above a needle holder mechanism and aligned and coupled therewith. The rear end of the rear swing arm is positioned above a driving mechanism and aligned and coupled therewith. One end of a thread-guiding fixing seat is fixedly connected with the protruding end of the pivot shaft and can be swung along with the swing arm.Type: GrantFiled: April 29, 2003Date of Patent: March 30, 2004Assignee: Ching Chi Machine Co., Ltd.Inventor: Shih-Fang Chen
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Patent number: 6694903Abstract: A knife track adjustment structure of a thread cutter of a sewing machine includes a front guide board bridged over the base board with an upper and a lower ends of the front guide board locked on the base board. The front guide board up and down adjustably displaceable on the base board. A guide is disposed under the middle section of the front guide board, a guide pin being sequentially passed through a hook rod arm and a knife arm. A swing arm, a first end of the swing arm being pivotally connected with the base board, a pin being connected with the bottom of a second end of the swing arm. The pin is sequentially passed through the hook rod arm and pivotally connected on the knife arm. A spring compressed between the swing arm and the base board helps in restoring the knife arm and hook rod arm.Type: GrantFiled: December 16, 2002Date of Patent: February 24, 2004Assignee: Ching Chi Machine Co., Ltd.Inventor: Shih-Fang Chen
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Patent number: 6691630Abstract: A looper thread take-up apparatus of a sewing machine, which is mounted near a side of the machine bed distal from an operator and is adjacent to the lower knotting hook. The looper thread take-up apparatus includes a rotary shaft. One end of the rotary shaft is driven by the lower driving shaft, while the other end of the rotary shaft is coupled with the thread take-up cam.Type: GrantFiled: February 5, 2002Date of Patent: February 17, 2004Assignee: Ching Chi Machine Co., Ltd.Inventor: Shih-Fang Chen