Patents by Inventor Charles Chang

Charles Chang 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).

  • Patent number: 7997286
    Abstract: A cosmetic compact providing a molded plastic base, a first cover and combined second cover and grip handle, all disposed over the base. The first cover is hinged to the base. The combined second cover and grip handle are selectively removable from the base, and carry an applicator device which when stored, is disposed between the first cover and base. The arrangement enables the user to quickly open the first cover and immediately remove and manipulate the combined second cover and grip handle, and attached applicator device, for application of cosmetic to the face or body. An especially neat, compact construction thereby is realized.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: August 16, 2011
    Inventors: Serena Eng, Charles Chang
  • Publication number: 20110169678
    Abstract: Techniques for an analog-to-digital converter (ADC) using pipeline architecture includes a linearization technique for a spurious-free dynamic range (SFDR) over 80 deciBels. In some embodiments, sampling rates exceed a megahertz. According to a second approach, a switched-capacitor circuit is configured for correct operation in a high radiation environment. In one embodiment, the combination yields high fidelity ADC (>88 deciBel SFDR) while sampling at 5 megahertz sampling rates and consuming <60 milliWatts. Furthermore, even though it is manufactured in a commercial 0.25-?m CMOS technology (1 ?m=12?6 meters), it maintains this performance in harsh radiation environments. Specifically, the stated performance is sustained through a highest tested 2 megarad(Si) total dose, and the ADC displays no latchup up to a highest tested linear energy transfer of 63 million electron Volts square centimeters per milligram at elevated temperature (131 degrees C.) and supply (2.7 Volts, versus 2.5 Volts nominal).
    Type: Application
    Filed: May 12, 2010
    Publication date: July 14, 2011
    Applicant: Stanford University
    Inventors: Charles Chang-I Wang, Ivan Richard Linscott, Umran S. Inan
  • Publication number: 20100219188
    Abstract: An aluminum container for dispensing beverage, includes a can having a cylindrical side wall, and transverse top and bottom walls. A pull tab mechanism is provided on the top wall to effect opening of the container. The transverse top wall has an upstanding peripheral rim, with one or two interrupted wall portions, one of said portions forming a spout for pouring the contents, or drinking from the container directly. The other of the interrupted wall portions provides a clearance space for facilitating the insertion of the user's finger beneath the pull tab in readiness for opening the container. The bottom wall of the container is provided with a removable appliqué, which may contain printed text/pictorial information, or information in the nature of a store or manufacturer's product coupon.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 2, 2010
    Inventor: Charles Chang
  • Patent number: 7785026
    Abstract: A cosmetic stick applicator for treating the lips of a person. The applicator has an elongate, tubular body with an inner chamber for storing a chemical formulation or substance such as an exfoliant, to be applied to the lips. One end of the body has an external, oblique, lip-engageable abrasive applicator surface containing a product-dispensing orifice through which the substance can be ejected. Such ejection is accomplished by means of a finger-engageable wheel that is turned to forcibly discharge the substance through the orifices and onto the applicator surface. Thereafter this surface which now contains the discharged substance, is rubbed against the lips and thus effects a scrubbing thereof, which brings about gentle and controlled exfoliation of accumulated dead skin cells. Following this, excess dead cell material can be wiped off with a tissue or pad.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: August 31, 2010
    Inventors: Serena Eng, Charles Chang
  • Publication number: 20090155536
    Abstract: A floor mat is provided having a top layer made with polyester felt capable of receiving printing by sublimation printing techniques, a bottom layer made with latex foam, and an adhesive layer between the top and bottom layers. The top layer includes a four color process printing applied thereon by sublimation of sublimation inks. The floor mat may further include a middle layer made with foam to provide extra cushioning for the floor mat.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 18, 2009
    Inventor: Charles Chang
  • Patent number: 7503331
    Abstract: A dual dispensing mode cosmetic compact for use with a cosmetic powder puff, cosmetic applicator sponge, or cosmetic brush, has a base member with an annular lip, a well to hold a cake of cosmetic material, and a closure lid receivable onto the base member. A scraper member located adjacent the well is engageable with the upper surface of the cosmetic cake. Finger-engageable structures adjacent to the well are turnable thereon, and there is a driving connection between the finger-engageable structures and the scraper member, which effects corresponding turning movement of the latter during turning of the finger-engageable structures. In one mode, the scraper member shaves off limited quantities of the upper surface of the cosmetic cake to produce controlled amounts of dust-like cosmetic powder particulates therefrom. In another mode, the scraper member is shifted by the user, to a second position remote from and outside of the annular lip.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: March 17, 2009
    Inventors: Serena Eng, Charles Chang
  • Publication number: 20090044826
    Abstract: A cosmetic compact providing a molded plastic base, a first cover and combined second cover and grip handle, all disposed over the base. The first cover is hinged to the base. The combined second cover and grip handle are selectively removable from the base, and carry an applicator device which when stored, is disposed between the first cover and base. The arrangement enables the user to quickly open the first cover and immediately remove and manipulate the combined second cover and grip handle, and attached applicator device, for application of cosmetic to the face or body. An especially neat, compact construction thereby is realized.
    Type: Application
    Filed: August 17, 2007
    Publication date: February 19, 2009
    Inventors: Serena Eng, Charles Chang
  • Publication number: 20090009252
    Abstract: A RF variable gain amplifier with an extended linear tuning range is disclosed. The variable gain amplifier employs a wide swing cascode mirror formed by two cascode transistors and two gain transistors. The two cascode transistors track each others so are the two gain transistor. The gain transistors operate on the saturation region.
    Type: Application
    Filed: September 17, 2008
    Publication date: January 8, 2009
    Applicant: VIA TECHNOLOGIES INC.
    Inventors: Neric Fong, Charles Chang, Didmin Shin
  • Patent number: 7443241
    Abstract: A RF variable gain amplifier with an extended linear tuning range is disclosed. The variable gain amplifier employs a wide swing cascode mirror formed by two cascode transistors and two gain transistors. The two cascode transistors track each other, so are the two gain transistor. The gain transistors operate on the saturation region.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: October 28, 2008
    Assignee: VIA Technologies Inc.
    Inventors: Neric Fong, Charles Chang, Didmin Shin
  • Publication number: 20080251096
    Abstract: A dual dispensing mode cosmetic compact for use with a cosmetic powder puff, cosmetic applicator sponge, or cosmetic brush, has a base member with an annular lip, a well to hold a cake of cosmetic material, and a closure lid receivable onto the base member. A scraper member located adjacent the well is engageable with the upper surface of the cosmetic cake. Finger-engageable structures adjacent to the well are turnable thereon, and there is a driving connection between the finger-engageable structures and the scraper member, which effects corresponding turning movement of the latter during turning of the finger-engageable structures. In one mode, the scraper member shaves off limited quantities of the upper surface of the cosmetic cake to produce controlled amounts of dust-like cosmetic powder particulates therefrom. In another mode, the scraper member is shifted by the user, to a second position remote from and outside of the annular lip.
    Type: Application
    Filed: April 16, 2007
    Publication date: October 16, 2008
    Inventors: Serena Eng, Charles Chang
  • Publication number: 20080166172
    Abstract: A cosmetic stick applicator for treating the lips of a person. The applicator has an elongate, tubular body with an inner chamber for storing a chemical formulation or substance such as an exfoliant, to be applied to the lips. One end of the body has an external, oblique, lip-engageable abrasive applicator surface containing a product-dispensing orifice through which the substance can be ejected. Such ejection is accomplished by means of a finger-engageable wheel that is turned to forcibly discharge the substance through the orifices and onto the applicator surface. Thereafter this surface which now contains the discharged substance, is rubbed against the lips and thus effects a scrubbing thereof, which brings about gentle and controlled exfoliation of accumulated dead skin cells. Following this, excess dead cell material can be wiped off with a tissue or pad.
    Type: Application
    Filed: January 8, 2007
    Publication date: July 10, 2008
    Inventors: Serena Eng, Charles Chang
  • Publication number: 20080099480
    Abstract: A beverage container includes a can body having a side wall, a neck portion of reduced diameter, a closure lid and an anchor structure on the closure lid. The anchor structure is offset with respect to the center of the lid. A pull tab has a mounting hole which fits onto the anchor structure. One end of the pull tab has a grip handle, and the other end has a puncturing nose. The pull tab is turnable on the anchor structure, and thus also turnable with respect to the closure lid. The pull tab is of a length whereby it normally just fits between the opposite locations of a peripheral groove on the closure lid. The pull tab can be manually turned from a first position overlying the closure lid, to a second position wherein it overhangs one part of the peripheral groove. The construction thus provides an extended handle length to permit the user to more easily grasp and raise the pull tab, and open the container, for use.
    Type: Application
    Filed: March 5, 2007
    Publication date: May 1, 2008
    Inventor: Charles Chang
  • Publication number: 20080013742
    Abstract: An analog transmit side crosstalk cancellation system is disclosed which is located at or near the connector of a communication channel, cable, or backplane. When configured as a connector, multiple signal paths are provided within the cancellation system. Input nodes and output nodes provide access into the connector of a received signal and out of the connector for processed signals. The crosstalk canceller comprises a delay, a filter, and an amplifier. These elements operate in conjunction to generate crosstalk cancellation signals. For a particular received signal, cancellation signals are combined therewith from one or more adjacent channels. The crosstalk cancellation system may be configured as part of a connector or an intermediary device between the communication device or card and conductors. The connector may be attached to the communication device or as part of the cable.
    Type: Application
    Filed: May 3, 2007
    Publication date: January 17, 2008
    Inventor: Charles Chang
  • Publication number: 20070132814
    Abstract: An ink filling mechanism is used to hold an ink-jet cartridge thereto for easily and effectively refilling the ink cartridge. The ink filling mechanism has an ink cartridge holder, which includes a holding case provided at a top wall with at least one ink filling opening for locating an ink injecting device to an adequate position for injecting ink into the ink cartridge. The ink cartridge holder of the ink filling mechanism also includes an ink nozzle sealing pad and an ink-pumping sealing pad, which may be selectively positioned at a bottom of the holding case to facilitate the injecting of ink into or the pumping of ink from the ink cartridge being refilled.
    Type: Application
    Filed: May 30, 2006
    Publication date: June 14, 2007
    Inventors: Charles Chang, Wen-Chung Yen
  • Publication number: 20070127974
    Abstract: The present invention achieves the above object, among others, by providing in a preferred embodiment, an apparatus, comprising: a liquid product applicator; and means to wipe liquid product from only a portion of said liquid product applicator, while leaving a greater amount of liquid product on other portions of said liquid product applicator. A method of using said liquid product applicator is also provided.
    Type: Application
    Filed: October 6, 2004
    Publication date: June 7, 2007
    Inventors: Charles Chang, Robert Sheffler
  • Publication number: 20070120601
    Abstract: A RF variable gain amplifier with an extended linear tuning range is disclosed. The variable gain amplifier employs a wide swing cascode mirror formed by two cascode transistors and two gain transistors. The two cascode transistors track each other, so are the two gain transistor. The gain transistors operate on the saturation region.
    Type: Application
    Filed: July 28, 2006
    Publication date: May 31, 2007
    Inventors: Neric Fong, Charles Chang, Didmin Shin
  • Patent number: 7214103
    Abstract: A lead frame has slots therein for bayonet type connection to electrical terminals provided on a solenoid valve or group of valves. Projections on the lead frame are disposed between the slots and upon bayonet connection to the terminals closely interfit a web disposed between the terminals on the solenoid. Preferably, support stanchions are provided for the terminals and may be integrally molded with the web.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: May 8, 2007
    Assignee: Eaton Corporation
    Inventors: Tae-Kyung Kim, Kenneth J. Parker, Charles Chang, Nathan W. Kryglowski, Jeffrey S. Diller, Mark W. Hildebrandt, Thomas R. Hildebrandt, Randy R. Reamsma, Kelly M. Newby
  • Publication number: 20070088597
    Abstract: A method and apparatus are provided for tracking a plurality of social services clients. The method may be at least partially implemented by the programmed computer and may include the step of providing a social services client of the plurality of social services clients with a customized set of services that depend upon a level of service required by the client.
    Type: Application
    Filed: October 19, 2005
    Publication date: April 19, 2007
    Applicant: Project Match Families in Transition
    Inventors: Toby Herr, Charles Chang
  • Publication number: 20070014572
    Abstract: A method and system for a bit error rate (BER) contour-based optimum decision threshold and sampling phase selection in optical communication systems is disclosed. According to one aspect of the invention, for a selected sampling phase and a decision threshold, high BER values are measured. Low BER values are approximated from the high BER values using error functions. The procedures are repeated for all selected sampling phases and decision thresholds and corresponding BER values are calculated. The sampling phases and decision thresholds for each specific BER value are plotted to create the BER contour diagrams. The optimum decision threshold for a sampling phase is calculated by equating the BER due to marks (“1s”) and the BER due to spaces (“0s”). In one aspect of the invention, a BER test module resides in the receiver. The BER test module calculates the BERs and the optimum decision threshold and sampling phase.
    Type: Application
    Filed: April 13, 2005
    Publication date: January 18, 2007
    Inventors: Gilberto Sada, Keith Jones, Charles Chang
  • Publication number: 20060151501
    Abstract: The present invention achieves the above objects, among others, by providing, in a preferred embodiment a protective laminate for a beverage can, applied before the can components are formed, comprising: at least one layer disposed across substantially an entire upper surface of a top of said beverage can; and said at least one layer having therein at least one score or die-cut line adapted to facilitate manual removal of said at least a portion of said at least one layer before a person consumes contents of said beverage can. A method of manufacturing said protective laminate is also provided.
    Type: Application
    Filed: June 8, 2004
    Publication date: July 13, 2006
    Inventors: Charles Chang, Robert Sheffler, Lucy Chang