Invention Grant
US08670245B2 Communication circuit for driving a plurality of devices 失效
用于驱动多个装置的通信电路

  • Patent Title: Communication circuit for driving a plurality of devices
  • Patent Title (中): 用于驱动多个装置的通信电路
  • Application No.: US13208514
    Application Date: 2011-08-12
  • Publication No.: US08670245B2
    Publication Date: 2014-03-11
  • Inventor: Quang Nguyen
  • Applicant: Quang Nguyen
  • Applicant Address: US CA San Diego
  • Assignee: QUALCOMM Incorporated
  • Current Assignee: QUALCOMM Incorporated
  • Current Assignee Address: US CA San Diego
  • Agent Eric Ho
  • Main IPC: H05K7/12
  • IPC: H05K7/12
Communication circuit for driving a plurality of devices
Abstract:
A system and method is provided for transmitting a signal to a plurality of slave devices (e.g., memory devices, etc.) via a communication circuit having a plurality of segments that are substantially equal in length and/or impedance. Specifically, according to one embodiment of the invention, an electronic system includes a processor, a plurality of memory devices, and a communication circuit (i.e., a bus) having a central node and a plurality of segments. Specifically, the plurality of segments are used to connect the plurality of devices (e.g., the processor, the plurality of memory devices) to the central node. For example, the processor is connected to the central node via a primary segment, the first memory device (M0) is connected to the central node via a first segment, etc. In one embodiment of the invention, the plurality of segments are substantially equal in length. In other words, the central node is substantially electrically-equidistant from each memory device. In another embodiment of the invention, the plurality of segments have substantially equal impedances. By arranging the plurality of memory devices in this manner (e.g., substantially electrically-equidistant from the central node, etc.), a well behaved signal can be received at each memory device.
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