Patents by Inventor Chien-Hsing Tang
Chien-Hsing Tang 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: 8542914Abstract: A film scanning method is provided. When the film is judged as a negative film, the scanning device sets the scan exposure time for the film according to the base background color of the film. The negative film is scanned for the scan exposure time, wherein, the film passes through the scanning device at one time so as to complete the above judge of the film type and scanning of the film. The film scanning method automatically completes the recognition of film type, performs accurate scanning based on the scan exposure time, expands the dynamic range and reduces noise impacts, so as to obtain a scanned image with higher accuracy.Type: GrantFiled: September 26, 2010Date of Patent: September 24, 2013Assignee: Qisda (Suzhou) Co., LtdInventors: Xian-Qiang Guo, Chien-Hsing Tang
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Publication number: 20110317229Abstract: A sheet-fed scanning device including a first scanning channel and a second scanning channel disposed in parallel, a first sensing element and a second sensing element is provided. The first sensing element corresponds to the first scanning channel for acquiring the image of a first type object. The first type object has a first surface which is adjacent to the first sensing element and within the range of the field depth of the first sensing element. The second sensing element corresponds to the second scanning channel for acquiring the image of a second type object. The second type object has a second surface adjacent to the second sensing element and a third surface dented to the second surface, wherein the third surface is within the range of the field depth of the second sensing element.Type: ApplicationFiled: June 16, 2011Publication date: December 29, 2011Applicant: QISDA (SUZHOU) CO.,LTDInventors: Chien-Hsing Tang, Kun-Yee Yang, Ming-Jie Zhao, Yun-Bin Gu, Jian Shen
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Publication number: 20110199337Abstract: The invention provides an object-detecting system and method for detecting information of an object located in an indicating space. In particular, the invention is to capture images relative to the indicating space by use of non-coincident fields of light, and further to determine the information of the object located in the indicating space in accordance with the captured images.Type: ApplicationFiled: February 10, 2011Publication date: August 18, 2011Applicant: QISDA CORPORATIONInventors: Chien-Hsing Tang, Hua-Chun Tsai, Yu-Wei Liao
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Publication number: 20110075925Abstract: A film scanning method is provided. When the film is judged as a negative film, the scanning device sets the scan exposure time for the film according to the base background color of the film. The negative film is scanned for the scan exposure time, wherein, the film passes through the scanning device at one time so as to complete the above judge of the film type and scanning of the film. The film scanning method automatically completes the recognition of film type, performs accurate scanning based on the scan exposure time, expands the dynamic range and reduces noise impacts, so as to obtain a scanned image with higher accuracy.Type: ApplicationFiled: September 26, 2010Publication date: March 31, 2011Applicant: QISDA (SUZHOU) CO.,LTDInventors: Xian-Qiang Guo, Chien-Hsing Tang
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Publication number: 20100296741Abstract: A film scanning method including the following steps is provided. Firstly, a film including an identification code and an image information area is provided, wherein the identification code is disposed on one side of the image information area along a first direction and has a first identification end and a second identification end along a second direction. Next, a location information of the identification code and a sequence information of the first identification end and the second identification end are checked and recorded. Lastly, the scanned image is adjusted along the first direction and the second direction respectively according to the location information and the sequence information. The invention provides the user with convenience in using a film scanning device without using additional elements.Type: ApplicationFiled: May 2, 2010Publication date: November 25, 2010Applicant: QISDA (SUZHOU) CO., LTDInventors: Chien-Hsing Tang, Ru-Song Shen
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Patent number: 7692829Abstract: A scan method includes providing a scanner, including an image sensor, a reference pattern and a transmission mechanism. The image sensor scans the reference pattern to generate reference data. The transmission mechanism transmits at least one recording media between the reference pattern and the image sensor. Finally, the image sensor generates scan data, and the scanner compares the scan data with the reference data to obtain a transmission condition thereof.Type: GrantFiled: November 21, 2007Date of Patent: April 6, 2010Assignee: Qisda CorporationInventors: Chi-Chin Huang, Chien-Hsing Tang
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Publication number: 20100002274Abstract: The invention discloses an independent scanning apparatus and an independent scanning method. The independent scanning apparatus of the invention includes a casing, a sheet-feeding mechanism, a scanning device, a store module, and a processing module. The casing includes an inlet and an outlet. The sheet-feeding mechanism is disposed in the casing for transporting an object through the inlet and the outlet. The scanning device is disposed in the casing for scanning the object. The processing module is disposed in the casing and electrically connected to the sheet-feeding mechanism, the scanning device and the store module.Type: ApplicationFiled: July 6, 2009Publication date: January 7, 2010Applicant: Qisda CorporationInventors: Chun Jen Lee, Chien Hsing Tang, Te Yuan Li
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Patent number: 7540588Abstract: A method for printing data includes the following steps. First, an ink jet printer, having a print head with a black jet and a color jet, for printing a swath of data is provided. Then, the print head is driven to start to print the swath of data on one side of the ink jet printer. Next, the black jet and the color jet are alternately triggered to print corresponding pieces of black data and corresponding pieces of color data in the swath of data. Thereafter, the swath of data is completely printed when the print head is driven to the other side of ink jet printer.Type: GrantFiled: October 22, 2007Date of Patent: June 2, 2009Assignee: Qisda CorporationInventors: Chien-Hsing Tang, Sheng-Lung Tsai, Hao-Feng Hung, Chia-Te Wang, Dao-Yueh Wu
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Publication number: 20080165394Abstract: A scanning device includes a housing, a transparent plate, an document feeder and an image capture module. The housing has an opening and the transparent plate covers the opening. The transparent plate has a stripe area, a first side neighboring to the stripe area, and a second side. The document feeder has an aperture. The image capture module, capable to move below the transparent plate, has a first scanning origin corresponding to the stripe area, and a second scanning origin corresponding to the second side. When the object is placed on the transparent plate, the image capture module moves from the second scanning origin toward the stripe area to scan the object. When the object is placed on the document feeder, the object is transported to pass the first scanning origin, and the image capture module is simultaneously positioned below the stripe area to scan the object through the aperture.Type: ApplicationFiled: December 31, 2007Publication date: July 10, 2008Applicant: QISDA CORPORATIONInventors: Chien-Hsing Tang, Huai-Wen Hsu
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Publication number: 20080117480Abstract: A scan method includes providing a scanner, including an image sensor, a reference pattern and a transmission mechanism. The image sensor scans the reference pattern to generate reference data. The transmission mechanism transmits at least one recording media between the reference pattern and the image sensor. Finally, the image sensor generates scan data, and the scanner compares the scan data with the reference data to obtain a transmission condition thereof.Type: ApplicationFiled: November 21, 2007Publication date: May 22, 2008Applicants: QISDA CORPORATION, BENQ CORPORATIONInventors: Chi-Chin Huang, Chien-Hsing Tang
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Publication number: 20080100651Abstract: A method for printing data includes the following steps. First, an ink jet printer, having a print head with a black jet and a color jet, for printing a swath of data is provided. Then, the print head is driven to start to print the swath of data on one side of the ink jet printer. Next, the black jet and the color jet are alternately triggered to print corresponding pieces of black data and corresponding pieces of color data in the swath of data. Thereafter, the swath of data is completely printed when the print head is driven to the other side of ink jet printer.Type: ApplicationFiled: October 22, 2007Publication date: May 1, 2008Applicants: BenQ Corporation, QISDA CORPORATIONInventors: Dao-Yueh Wu, Chia-Te Wang, Sheng-Lung Tsai, Hao-Feng Hung, Chien-Hsing Tang
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Patent number: 6661916Abstract: An image processing method of an image processing system. The image processing system has a memory for storing programs and a picture image, and a processor for executing the programs stored in the memory. The picture image has a plurality of pixels. The method has three steps. The first step is to find at least one image area with a predetermined characteristic from the picture image according to a predetermined image area detecting method. The second step is to define a boundary area around the image area according to a predetermined boundary area defining method. The third step is to adjust pixels inside the image area according to a predetermined color adjusting method, and adjust pixels inside the boundary area according to a different but similar color adjusting method so that the color adjustment can be extended from the image area to the boundary area.Type: GrantFiled: December 8, 2000Date of Patent: December 9, 2003Assignee: BenQ CorporationInventors: Po-Chin Yang, Chien-Hsing Tang, Hsu-Chu Chien, Yuan-Guan Lin
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Patent number: 6631968Abstract: A printing device includes a print unit for printing data. In each printing procedure, the printer separates at least a printing division from a path that the print unit passes through in the printing procedure and determines if the path includes a non-printing division according to the print data. The printer controls the print unit to move at a first velocity and print the document when the print unit passes through the printing division. If the path includes a non-printing division, the printer controls the print unit to stop printing the document and to move at a second velocity within the non-printing division when the print unit passes through the non-printing division.Type: GrantFiled: November 29, 2001Date of Patent: October 14, 2003Assignee: Benq CorporationInventors: Chien-Hsing Tang, Chia-Lei Yu, Chien-Hsien Ho
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Patent number: 6417501Abstract: An image processing system has a memory for storing programs, an unprocessed image and a processor for executing the programs in the memory. The image is a plurality of pixels arranged as a matrix, and each pixel has several color parameters. The image has at least one image region. One of the color parameters is adjusted according to an initial image adjusting value. Then, in one direction of up, down, left or right, the image adjusting value is successively changed by adding a fixed value, or multiplying by a fixed factor. Each successive pixel has its color parameter adjusted by adding the image adjusting value to it. Image adjustment proceeds in this way from the image region to an outer region along the predetermined direction.Type: GrantFiled: September 18, 2000Date of Patent: July 9, 2002Assignee: Acer Communications and Multimedia Inc.Inventors: Po-Chin Yang, Chien-Hsing Tang
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Publication number: 20020067385Abstract: A printing device includes a print unit for printing data. In each printing procedure, the printer separates at least a printing division from a path that the print unit passes through in the printing procedure and determines if the path includes a non-printing division according to the print data. The printer controls the print unit to move at a first velocity and print the document when the print unit passes through the printing division. If the path includes a non-printing division, the printer controls the print unit to stop printing the document and to move at a second velocity within the non-printing division when the print unit passes through the non-printing division.Type: ApplicationFiled: November 29, 2001Publication date: June 6, 2002Inventors: Chien-Hsing Tang, Chia-Lei Yu, Chien-Hsien Ho
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Patent number: 6353968Abstract: A single-button support mechanism is provided to improve a turning means joining an upper portion and a body of a device. The support mechanism constructs a pivot and a holding groove at the upper portion and, at the body, a cam trough, a button groove, and another groove for accommodating a retaining member to further hold a first spring. The cam is formed as saw type teeth at a peripheral thereof, and each tooth of the cam has a notch engageable with a position button. By applying the single-button support mechanism, the turning means can utilize the cam moving in the cam trough for engaging with the upper portion at a selected angle, and utilize the position button movable in the button groove for controlling the opening or closing of the upper portion.Type: GrantFiled: August 23, 2000Date of Patent: March 12, 2002Assignee: Acer Peripherals, Inc.Inventors: Der-Rong Shyu, Kun-Yee Yang, Chien-Hsing Tang, Wei-Feng Yen
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Publication number: 20010010735Abstract: An image processing method of an image processing system. The image processing system has a memory for storing programs and a picture image, and a processor for executing the programs stored in the memory. The picture image has a plurality of pixels. The method has three steps. The first step is to find at least one image area with a predetermined characteristic from the picture image according to a predetermined image area detecting method. The second step is to define a boundary area around the image area according to a predetermined boundary area defining method. The third step is to adjust pixels inside the image area according to a predetermined color adjusting method, and adjust pixels inside the boundary area according to a different but similar color adjusting method so that the color adjustment can be extended from the image area to the boundary area.Type: ApplicationFiled: December 8, 2000Publication date: August 2, 2001Inventors: Po-Chin Yang, Chien-Hsing Tang, Hsu-Chu Chien, Yuan-Guan Lin
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Patent number: 6188805Abstract: A method for automatically aligning a charge coupled device of a scanner by using a software contained in the scanner instead of physically aligning the charge coupled device is disclosed. The scanner comprises a charge coupled device (CCD) having an array of optic sensors for converting a reflected line image into an analog signal array, an analog-to-digital (A/D) converter for converting the analog signal array into an image data array, and a test region having a positioning mark in it. The method comprises the following steps of: (1) generating an image data array which comprises the image of the test region in it by using the CCD and the A/D converter; (2) identifying the positioning mark from the image data array; and (3) setting an effective scanning range which defines the start and stop positions of valid image data within the image data array according to the identified positioning mark.Type: GrantFiled: July 16, 1996Date of Patent: February 13, 2001Assignee: Acer Communications and Multimedia Inc.Inventors: Bing-Hsiu Wu, Chien-Hsing Tang, Ted Cheng
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Patent number: 6094512Abstract: An image reading apparatus that includes an image scanning module in which an image sensor device is provided. The image reading apparatus includes an upper housing and a pattern located on the bottom surface of the upper housing and positioned at a position x with reference to the edge of the opening. The upper housing has a bottom surface and is provided with an opening for mounting a transparent platen adapted for supporting a document to be scanned. The opening defines an edge. Responsive to detection of the pattern by the image sensor device, the image reading apparatus determines the distance required to move by the scanning module to reach a predetermined positioning line.Type: GrantFiled: January 2, 1998Date of Patent: July 25, 2000Assignee: Acer Peripherials Inc.Inventors: Pin Hsu Lin, Chien-Hsing Tang, Chien-hung Chen
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Patent number: 6034791Abstract: A method for positioning the initialization position of a light source for an image reading apparatus operated under a passing-light mode is provided. A platen including a reference area that provides a pattern disposed at a position x is provided. The method comprises a first step of positioning the scan model at the position x in order to read the pattern within the reference area. Secondly, the method moves the light source toward the reference area and, at the same time, triggers the scan module to scan the image. Thirdly, repeat the second step until the image scanned by the scan module meets a pre-determined criterion. Fourthly, the method makes the light source module further move a distance of .DELTA.D-.DELTA.d. The .DELTA.d is the distance traveled by the light source during an interval which begins at the capture of the pattern by the scan module and ends at the determination of the pre-determined criterion as being met.Type: GrantFiled: January 14, 1998Date of Patent: March 7, 2000Assignee: Acer Peripherals, Inc.Inventors: Chien-Hsing Tang, Pin-Hsu Lin, Bing-Hsiu Wu