Central Power Source Patents (Class 379/318)
  • Patent number: 9953841
    Abstract: Provided is a method of fabricating a semiconductor device including the following steps. A substrate is provided. A material layer having an opening is formed on the substrate. A first passivation material layer is formed on sidewalls of the opening and on the substrate. A treatment process is performed to the first passivation material layer to form a second passivation material layer. A first surface of the second passivation material layer and a second surface (at an inner side) of the second passivation material layer are differ in a property, and the first surface is located at a side of the second passivation material layer relatively away from the material layer.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: April 24, 2018
    Assignee: MACRONIX International Co., Ltd.
    Inventors: Yuan-Chieh Chiu, Shih-Ping Hong, Kuang-Chao Chen, Yen-Ju Chen
  • Patent number: 7964993
    Abstract: Embodiments disclosed herein describe a network device including a class AB common mode suppression (CMS) circuit coupled in parallel between a line voltage source and a physical layer (PHY) device that provides active EMI suppression and Phy device termination. A network connector is coupled to provide the line voltage source to the class AB CMS circuit. The class AB CMS circuit provides current to the PHY device, terminates open-drain transmit drivers of the PHY device and suppresses common mode noise thereby minimizing electromagnetic interference. In other embodiments, the class AB CMS circuit is coupled in parallel between the network connector and a physical layer (PHY) device. The class AB CMS circuit suppresses common mode noise, and terminates open-drain transmit drivers of the PHY device, thereby minimizing electromagnetic interference.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: June 21, 2011
    Assignee: Akros Silicon Inc.
    Inventors: Jun Cai, Amit Gattani
  • Patent number: 7248890
    Abstract: A transceiver according to some embodiments of the present invention receives data from a plurality of frequency separated transmission channels from a complementary transmitter of another transceiver and adjusts the power output of certain channels in a transmitter of the receiver. Upon start-up, the power output levels of signals in individual channels in the transmitter can be preset. A power balance can determine new power output levels of the transmitter from parameters in the receiver while receiving data transmitted by a similarly situated complementary transmitter in a second transceiver coupled to the transceiver. In some embodiments, a complementary receiver of the other transceiver determines the power outputs of the transmitter and the power levels are transmitted to the transmitter by the other transceiver.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: July 24, 2007
    Assignee: Vativ Technologies, Inc.
    Inventors: Sreen A. Raghavan, Thulasinath G. Manickam, Peter J. Sallaway, Gerard E. Taylor
  • Patent number: 5734711
    Abstract: In a program-controlled telecommunication system (KS), at least sub-areas (SLM1..n) are controlled into an energy-saving mode with reduced energy consumption using a central controller (ZS) and additional controllers (SM) given the presence of energy-saving information (ei). The energy-saving information (ei) are formed, for example, using a timer (UM) in the telecommunication system (KS) and using an implemented energy-saving routine (ESR). A telecommunication system (KS) fashioned in this way can be controlled into an energy-saving mode, for example during the night or over weekends.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: March 31, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventor: Werner Kleffner