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Acer Communications and Multimedia Inc. Patents
Assignee:
Acer Communications and Multimedia Inc.
Address:
Taoyuan, TW
No. of patents:
31
Patents:




Patent Number Title Of Patent Date Issued
D464650 LCD monitor October 22, 2002
D434037 LCD monitor November 21, 2000
7154469 Backlight device December 26, 2006
A backlight device that includes a transparent substrate, a plurality of protrusions, a first layer of transparent material, a second layer of transparent material and a light source. The protrusions are provided on the substrate. The first layer of transparent material is attached to th
7127228 Portable electric device with power failure recovery and operation method thereof October 24, 2006
A portable electronic device with power failure recovery, powered by a main power source, the device comprising a power detection module, a processor, a timing unit and a power management unit. The power detection module detects an output characteristic from the main power source and
6909428 Signal converter device June 21, 2005
The present invention provides a device for signal transfer, which outputs a treatment signal relating to a vertical-horizontal composite sync signal of a monitor and an integrated signal of the vertical-horizontal composite sync signal. There is a plurality of logic circuits in the devi
6568789 Print head maintenance device used in a printing device May 27, 2003
A print head maintenance device is used in a printing device. The print head maintenance device cleans a print head of the printing device. The print head is movable on a horizontal track of the printing device. The print head has at least one linearly arranged nozzle array. When the pri
6480400 Power supply apparatus November 12, 2002
The present invention provides a power supply apparatus for outputting an output voltage according to a first signal from outside, the power supply apparatuses comprises a rectifier, a power transformer, a power control circuit, and a switching device. The rectifier is provided for suppl
6456581 Disk player of simplified heat-dissipating structure September 24, 2002
A disk player of simplified heat-dissipating structure includes a housing, a platform and fan blades. The housing has a supporting portion. The fan blades are laid on the supporting portion of the housing. The platform is movably and rotatably provided in the housing. In operation, the p
6449101 Projection zoom lens with a long back focal length and exit pupil position September 10, 2002
A projection lens has five optical groups, labeled O.sub.I to O.sub.V, having effective focal lengths f.sub.I to f.sub.V, respectively. The optical groups move on an optical axis to perform zooming and focussing functions. The projection lens has a total of at least thirteen lenses,
6447087 Method for driving an ink jet print head of a printing apparatus September 10, 2002
A method for driving an ink jet print head of a printing apparatus is disclosed. The ink jet print head includes a plurality of ink cells for containing ink, Each ink cell has a nozzle and a heating element. The method includes calculating an index of each nozzle which will jet ink in
6437675 Linear coil acoustic noise inhibiting August 20, 2002
A linear coil for inhibiting acoustic noise is provided. A rubber spacer is disposed in addition to the conventional linear coil. By means of the spacer, the vibration, generated when the deflection current passes through the linear coil, is absorbed. As a result, acoustic noise, caused
6431541 Feeding mechanism August 13, 2002
The feeding mechanism for feeding media from an initial site to a predetermined site comprises a base, a scrubber, a deskewer, two feeders, a lifting device having two cam portions, a driving element and a releasing device. The deskewer is moved between a first position and a second
6417501 Image processing method for an image processing system having a changed image July 9, 2002
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.
6416148 Method and system for improving the print quality of a printer July 9, 2002
A printer has a print head for forming a pixel, and a driving system for moving the print head from a first location to a second location. The print head forms the pixel according to a firing signal. The movement of the print head is controlled by a control signal sent to the driving
6416147 Printing device with optimized print head positioning logic July 9, 2002
A printer has a print path disposed along a left-and-right direction, a driving system for moving a print head left or right along the print path, a control circuit for controlling the driving system, and a look-ahead system. The print head is used to perform a printing operation that fo
6412906 Scraper for a wiper in an ink jet service station July 2, 2002
An ink jet service station has a housing with a right wall and a left wall, and a carriage for holding a wiper. The carriage is moveably installed in the housing, and a scraper is rotatably mounted on the carriage. When the carriage moves to the left wall, the scraper contacts the left w
6407715 Dual frequency band antenna with folded structure and related method June 18, 2002
An antenna has a conductive ground plate, a conductive first plate set above the ground plate, and a signal feed electrically connected to the ground plate and the first plate. A first distance separates the first plate from the ground plate. The first plate has two slots extending from
6405447 Alignment device for electrically connecting a testing device to a sliding plate on a conveyer June 18, 2002
The present invention relates to an alignment device for electrically connecting a testing device to a socket of a sliding plate. The testing device is positioned beside a conveyer. The sliding plate is slidably placed on the conveyer and is temporarily halted in front of the testing
6400510 Uniform illumination optical device with a concave lens June 4, 2002
A uniform illumination device satisfies the demands of having a short optic path, a smaller beam size, and desired parallel beams. The uniform illumination device has a beam splitting device for converting light from a light source into a plurality of parallel beams, and a beam condenser
6398368 Light pipe for a projector system June 4, 2002
A light pipe is designed for a projector system. The light pipe gathers the light from a light source and guides the gathered light to an image device in the projector system. The area of the exit pupil of the light pipe is smaller than the area of the entrance pupil, and the shape of th
6398340 Ink jet service station with a wiper moved by a wipe sled June 4, 2002
A printing device has a motor that drives an ink jet print head back and forth along a print track. A service station is installed on one end of the print track, and has a first track, a second track, a slot track, and a wipe sled. The wipe sled slides inside a housing of the service sta
6396526 Ink ribbon positioning system of a color printer May 28, 2002
An ink ribbon positioning system of a color printer for identifying various positions of a color ink ribbon of the color printer. The ink ribbon includes a plurality of sequentially arranged color frames for storing different color dyes. The color printer includes a thermal print head fo
6394576 Printing apparatus and method May 28, 2002
A printing apparatus has an ink jet print head that performs printing passes on a jetting position of the printing area. The ink jet print head has nozzles, each nozzle prints ink spots on a jetting position of the printing area. The ink jet print head performs printing according to a
6392642 Display device which can automatically adjust its resolution May 21, 2002
The present invention provides a display device for displaying video frame signals transmitted from a computer. When the display device receives the video frame signals, it detects the number of horizontal scanning lines first, and then compares the number with a sampling reference table
6352256 Media feeding system March 5, 2002
A media feeding system has a pick arm with a pick roller, a media tray, a media restrainer, a motor and a drive train. The pick arm is rotatably installed above the media tray so that it can lift the pick roller away from the media tray, and lower it onto the media tray. The media re
6350008 Ink jet station assembly February 26, 2002
A print head moves forward and backward along a print track to perform a printing operation, and has at least one nozzle. A station assembly includes a carrier for holding the print head, the carrier moving the print head forward and backward along the print track, and a service stat
6349931 Automatic paper feeding system February 26, 2002
An automatic paper feeding system has a paper-grabbing device and paper-separating device, with a paper tray having a front end that can move up and down. A paper-feeding channel is in front of the front end of the paper tray. The paper-grabbing device is installed on the paper tray
6325639 I/O connector for a portable communications device December 4, 2001
A portable communications device has a housing with a circuit board set within the housing. An I/O connector has an interface connector that mounts on the housing. The interface connector thus has internal and external sides. Conductors on the external side present an I/O interface f
6288353 Computer keyswitch with accurately positioned rubber domes September 11, 2001
A computer keyswitch with accurately positioned rubber domes. The computer keyswitch includes a base plate, a membrane circuit board installed on the base plate, and a rubber sheet positioned on the membrane circuit board. The membrane circuit board has a plurality of pressure sensors. T
6254417 I/O connector for a portable communications device July 3, 2001
An I/O connector has a housing with front, rear and top openings. Set within the housing is a monolithically formed latch. This latch has first and second tines. The first tine has a notch at its front end for engaging with an appropriate locking niche on the portable communications devi
6188805 Method for aligning charge coupled device of a scanner February 13, 2001
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

 
 
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