Patents by Inventor Tsung-Kan Cheng
Tsung-Kan Cheng 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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Publication number: 20240021055Abstract: A casing opening device for point of sales is provided. The casing for point of sales has a front casing and a rear casing. The casing opening device includes two hinges which are disposed inside the front casing and the rear casing. Each hinge includes a positioning rod and a position releasing mechanism. A front end of the positioning rod points to the rear casing. A rear end of the positioning rod is disposed with a positioning hook. The position releasing mechanism includes a position releasing rod linked to the positioning rod. When the front casing is pressed down to cover the rear casing, the front casing presses the position releasing rod and moves the positioning rod to remove the positioning hook from the positioning hole, such that each of the two hinges is stored as a flatten shape as compressed by the front casing.Type: ApplicationFiled: July 14, 2023Publication date: January 18, 2024Inventor: Tsung-Kan CHENG
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Publication number: 20190065797Abstract: A two-axis rotary adjustment device of a barcode reader scanning head includes a base having a vertical bearing, a U-shaped frame having a transversal beam and two side arms, the transversal beam including a vertical shaft formed on a top portion thereof and the vertical shaft pivotally connecting and clamping the vertical bearing so that the U-shaped frame is able to horizontally rotate on the base along a first axis, the side arms including two horizontal bearings aligning with each other, and a scanning head frame for storing the barcode reader scanning head, a scanning surface of the barcode reader scanning head facing outwardly, the scanning head frame including two horizontal shafts at two sides of the scanning head frame and aligning with each other, the horizontal shafts pivotally connecting to the horizontal bearings of the side arms respectively.Type: ApplicationFiled: August 24, 2018Publication date: February 28, 2019Inventor: Tsung-Kan CHENG
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Patent number: 9224718Abstract: A white light-emitting diode (LED) package containing plural blue LED chips is disclosed. The white LED package includes a transparent plate, plural blue LED chips bonded on a front surface of the transparent plate, a front fluorescent glue layer covering the plural blue LED chips, and a rear transparent glue layer covering a rear surface of the transparent plate and located at a position aligned with the front fluorescent glue layer. The edge of the rear transparent glue layer has an inclined lateral surface or a curved inclined lateral surface. Therefore, the light can be extracted from both front and rear surfaces, and the light extraction efficiency of the rear surface of the transparent plate is increased. The rear transparent glue layer can be replaced by a rear fluorescent glue layer to reduce the color temperature difference between the lights extracted from the front surface and the rear surface.Type: GrantFiled: November 11, 2013Date of Patent: December 29, 2015Assignee: Harvatek CorporationInventors: Tsung-Kan Cheng, Chia-Chin Chen, Chia-Pin Chang
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Publication number: 20150060902Abstract: The present invention provides a package of LED chips. The package comprises a transparent plate having a front surface and a rear surface, a plurality of LED chips disposed on the front surface, two opposite front surface reflective walls disposed on the front surface and located at two opposite outsides of the plurality of LED chips, a front surface phosphor gel filling between the two opposite front surface reflective walls, two opposite rear surface reflective walls disposed on the rear surface and a rear surface phosphor gel filling between the two opposite rear surface reflective walls. The present invention realizes the light of the package of LED chips can be extracted from both the front side and the rear side to enhance the light extraction efficiency.Type: ApplicationFiled: June 10, 2014Publication date: March 5, 2015Inventors: Tsung-Kan CHENG, Chia-Chin CHEN
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Publication number: 20140209934Abstract: A white light-emitting diode (LED) package containing plural blue LED chips is disclosed. The white LED package includes a transparent plate, plural blue LED chips bonded on a front surface of the transparent plate, a front fluorescent glue layer covering the plural blue LED chips, and a rear transparent glue layer covering a rear surface of the transparent plate and located at a position aligned with the front fluorescent glue layer. The edge of the rear transparent glue layer has an inclined lateral surface or a curved inclined lateral surface. Therefore, the light can be extracted from both front and rear surfaces, and the light extraction efficiency of the rear surface of the transparent plate is increased. The rear transparent glue layer can be replaced by a rear fluorescent glue layer to reduce the color temperature difference between the lights extracted from the front surface and the rear surface.Type: ApplicationFiled: November 11, 2013Publication date: July 31, 2014Applicant: Harvatek CorporationInventors: Tsung-Kan CHENG, Chia-Chin CHEN, Chia-Pin CHANG
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Patent number: 7513801Abstract: An electronic apparatus is provided at one side with an adapting plate, on at least one side surface of which there is provided connecting lines, and a memory-card plug adapter is detachably connected to the apparatus through engagement of a socket provided at a front end of the adapter with the adapting plate on the apparatus. Elastic contact terminals are provided in the socket to electrically connect to the connecting lines on the adapting plate. The apparatus is adapted to plug in any type of memory-card socket provided on a computer through detachable engagement of the adapting plate on the apparatus with one memory-card plug adapter that corresponds to the memory-card socket on the computer.Type: GrantFiled: April 28, 2004Date of Patent: April 7, 2009Assignee: C-One Technology CorporationInventors: Tsung-Kan Cheng, Forli Wen, Tony Chang
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Publication number: 20090061690Abstract: An electronic apparatus is provided at one side with an adapting plate, on at least one side surface of which there is provided connecting lines, and a memory-card type adapter is detachably connected to the apparatus through engagement of a socket provided at a front end of the adapter with the adapting plate on the apparatus. Elastic contact terminals are provided in the socket to electrically connect to the connecting lines on the adapting plate. The apparatus is adapted to plug in any type of memory-card socket provided on a computer through detachable engagement of the adapting plate on the apparatus with one memory-card type adapter that corresponds to the memory-card socket on the computer.Type: ApplicationFiled: April 28, 2004Publication date: March 5, 2009Inventors: Tsung-Kan Cheng, Forli Wen, Tony Chang
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Patent number: 7417695Abstract: A mechanism for adjusting an elevation angle of an LCD includes a base, a U-shaped locking arm, a pawl, a release button, an LCD, two rotation shafts and return springs. The base is disposed with a lower casing and a slot. The U-shaped locking arm is defined with an L-shaped hole. The pawl extends through the L-shaped hole and the slot. The release button connects to the U-shaped locking arm. The LCD is disposed with an upper casing. Teeth are respectively disposed at two ratchet arcs of the upper casing and abut against the pawl. The rotation shafts are pivotally disposed at the U-shaped locking arm, the upper casing and the lower casing. The upper casing and the angular relationship between the LCD and the base are restricted by the return springs. When the release button is operated, the angle of elevation of the LCD is adjustable.Type: GrantFiled: May 19, 2006Date of Patent: August 26, 2008Assignee: Posiflex Inc.Inventor: Tsung-Kan Cheng
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Publication number: 20070077826Abstract: A computer case includes a lower and an upper cover pivotally connected at a front end to each other via two shafts. The lower and upper covers are provided near two lateral rear ends with an elastic fastening mechanism each for detachably locking a rear end of the lower and upper covers when they are closed to each other. A set of computer equipment is mounted to inner surfaces of the lower and upper covers. When the upper cover is pivotally lifted from the lower cover to fully open the computer case, the computer equipment can be easily accessed to facilitate repair or maintenance thereof.Type: ApplicationFiled: May 11, 2006Publication date: April 5, 2007Applicant: POSIFLEX INC.Inventor: Tsung-Kan Cheng
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Publication number: 20070030632Abstract: A mechanism for adjusting a rotary angle of an LCD includes: a lower base with a sector rack and arcuate sliding grooves disposed at the top surface thereof; an upper base disposed with an LCD at an upper portion thereof, the bottom surface of the upper base being disposed with sliding posts for movably engaging with the arcuate sliding grooves; and a positioning mechanism including a positioning spring and a positioning push button. The positioning spring constantly urges the positioning push button to mate with one of the protruding teeth of the rack, thereby positioning the rotary angle of the upper base and the LCD. When the positioning push button is inwardly pushed, the positioning push button is disengaged from the protruding tooth thereby enabling the LCD to rotate right and left. The adjusting mechanism further includes an inhibiting mechanism for restricting the rotating scope of the LCD.Type: ApplicationFiled: May 10, 2006Publication date: February 8, 2007Applicant: POSIFLEX INC.Inventor: Tsung-Kan Cheng
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Publication number: 20070030410Abstract: A mechanism for adjusting an elevation angle of an LCD includes a base, a U-shaped locking arm, a pawl, a release button, an LCD, two rotation shafts and return springs. The base is disposed with a lower casing and a slot. The U-shaped locking arm is defined with an L-shaped hole. The pawl extends through the L-shaped hole and the slot. The release button connects to the U-shaped locking arm. The LCD is disposed with an upper casing. Teeth are respectively disposed at two ratchet arcs of the upper casing and abut against the pawl. The rotation shafts are pivotally disposed at the U-shaped locking arm, the upper casing and the lower casing. The upper casing and the angular relationship between the LCD and the base are restricted by the return springs. When the release button is operated, the angle of elevation of the LCD is adjustable.Type: ApplicationFiled: May 19, 2006Publication date: February 8, 2007Applicant: POSIFLEX INC.Inventor: Tsung-Kan Cheng
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Publication number: 20060022324Abstract: This invention discloses a stacked flash memory chip package and a method for the stacked flash memory chip package. A first flash memory chip is mounted on a substrate, in which the first flash memory chip has an inactive surface for adhering to the substrate and a number of bond pads are all disposed on one side of an active surface of the flash memory chip. Then, a second flash memory chip is mounted over the first flash memory chip in a non-alignment manner so that the second flash memory chip shields part of the active surface of the first flash memory chip and that the bond pads of first flash memory chip are exposed. Then, the bond pads of the first flash memory chip and the bond pads of the second flash memory chip are respectively connected to the circuit of the substrate by wire bonding.Type: ApplicationFiled: December 30, 2004Publication date: February 2, 2006Applicant: C-One Technology CorporationInventors: Gordon Yu, Hung-Ya Liu, Xeras Xiang, Tsung-Kan Cheng
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Patent number: 6942514Abstract: A connector for electrically connecting a terminal board includes a base having a plurality of contact terminals extending through a rear frame of the base which is received in a case so that the terminal board can be inserted through an elongated hole in the case to contact with the contact terminals. Two release plates extend through two slots defined in two side frames of the base and each has a hook so as to hook respective ones of two recesses of the terminal board. A spring is connected between the two release plates so that when the two release plates are pushed toward each other, the two hooks are disengaged from the recesses of the terminal board and the connector is easily removed from the terminal board.Type: GrantFiled: March 4, 2004Date of Patent: September 13, 2005Assignee: C-One Technology CorporationInventors: Tsung-Kan Cheng, Tony Chang, Forli Wen
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Publication number: 20050196995Abstract: A connector for electrically connecting a terminal board includes a base having a plurality of contact terminals extending through a rear frame of the base which is received in a case so that the terminal board can be inserted through an elongated hole in the case to contact with the contact terminals. Two release plates extend through two slots defined in two side frames of the base and each has a hook so as to hook respective ones of two recesses of the terminal board. A spring is connected between the two release plates so that when the two release plates are pushed toward each other, the two hooks arc disengaged from the recesses of the terminal board and the connector is easily removed from the terminal board.Type: ApplicationFiled: March 4, 2004Publication date: September 8, 2005Inventors: Tsung-Kan Cheng, Tony Chang, Forli Wen
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Patent number: 6939182Abstract: A fool-proof mechanism for memory card is presented, in which an asymmetrically configured insertion end of a memory card is provided to ensure that no incorrect insertion of the memory card will be done; and a length or height gradient of circuit's contact produced according to an asymmetric arcuate or curved alignment of a plurality of circuit's contacts will create a contact time difference between contacts of different circuit's contacts with corresponding contact terminals for application in design of specific circuits.Type: GrantFiled: April 20, 2004Date of Patent: September 6, 2005Assignee: C-One Technology CorporationInventors: Forli Wen, Tony Chang, Tsung-Kan Cheng
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Patent number: 6880995Abstract: An elastic-cup support for keyboard is in the form of a flat locating sheet located on a membrane-type switch circuit board of the keyboard, and provided at positions corresponding to membrane-type switches on the circuit board with receiving holes for separately receiving an elastic cup therein. Each of the receiving holes is provided with an upward projected wall portion to confine the elastic cup to the receiving hole. The wall portion is optionally provided with at least one notch having a lug radially inward extended therefrom, such that the elastic cup confined by the wall portion is also pressed against the at least one lug to fixedly located in the receiving hole on the flat locating sheet. Alternatively, the wall portion may be provided at an upper edge with at least one radially inward projected lug to prevent the elastic cup from separating from the receiving hole.Type: GrantFiled: July 9, 2003Date of Patent: April 19, 2005Assignee: Monterey International Corp.Inventor: Tsung-Kan Cheng
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Publication number: 20050008419Abstract: An elastic-cup support for keyboard is in the form of a flat locating sheet located on a membrane-type switch circuit board of the keyboard, and provided at positions corresponding to membrane-type switches on the circuit board with receiving holes for separately receiving an elastic cup therein. Each of the receiving holes is provided with an upward projected wall portion to confine the elastic cup to the receiving hole. The wall portion is optionally provided with at least one notch having a lug radially inward extended therefrom, such that the elastic cup confined by the wall portion is also pressed against the at least one lug to fixedly located in the receiving hole on the flat locating sheet. Alternatively, the wall portion may be provided at an upper edge with at least one radially inward projected lug to prevent the elastic cup from separating from the receiving hole.Type: ApplicationFiled: July 9, 2003Publication date: January 13, 2005Inventor: Tsung-Kan Cheng
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Publication number: 20040147143Abstract: A micro-storage device capable of being conjoined with a personal adornment is disclosed, which has a connector formed by an extension to a circuit board and accordingly forms an all-in-one substrate. Electronics are packaged on the substrate by a chip package technique to house the electronics and corresponding circuitry on the substrate by a metal case to offer a product protection function. The inventive micro-storage device can conjoin with a personal adornment for portability.Type: ApplicationFiled: August 13, 2003Publication date: July 29, 2004Applicants: C-One Technology Corporation, Pretec Electronics CorporationInventors: Gordon Yu, Forli Wen, Justin Cheng, Tsung-Kan Cheng
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Patent number: D492686Type: GrantFiled: December 4, 2003Date of Patent: July 6, 2004Assignees: C-One Technology Corp., Pretec Electronics Corp.Inventors: Gordon Yu, Tsung-Kan Cheng, Forli Wen
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Patent number: D492687Type: GrantFiled: December 4, 2003Date of Patent: July 6, 2004Assignees: C-One Technology Corp., Pretec Electronics Corp.Inventors: Gordon Yu, Tsung-Kan Cheng, Forli Wen