Resources Contact Us Home
Apparatus and method for providing dynamically assigned switch paths

Image Number 6 for United States Patent #4656626.

A CAM/RAM/CAM memory array is used to provide dynamic space and time switching between a plurality of sources and destinations. The memory array includes a source CAM portion, a destination CAM portion and a data RAM portion with each row forming a word. In order to establish a path, a source address is stored in the source CAM portion of a word and a destination address is stored in the destination CAM portion of the same word. When data is to be switched, the data source address is presented to the source CAM on a TDM address bus to address a word having the same source address. The data is then written into the RAM of the addressed word from a data bus, if an address comparison is found. The address of the destination is time division multiplexed to the destination CAM via a destination address bus. If the address of the data destination on the address bus matches a stored address, the data RAM associated with the address is enabled and read to the data bus for delivery to the data destination. Means are further provided to dynamically assign and unassign addresses to and from words in the memory array to thereby dynamically establish switch paths.

  Recently Added Patents
X-ray imaging
Process for producing a plasma protein-containing medicament with reduced concentration of citrate and metals
Spalling utilizing stressor layer portions
Antenna device and wireless communication apparatus
System for highlighting targets on head up displays with near focus plane
Towel clip
  Randomly Featured Patents
Arrangement with p-doped and n-doped semiconductor layers and method for producing the same
Brominated polystyrene having improved thermal stability and color and process for the preparation thereof
Vehicular communication system using an ignition key
Method and apparatus for run length limited TMDS-like encoding of data
Water and steam separating device for drying moist steam
Medical connector with closeable male luer
Method for improving performances of a mobile radiocommunication system using a power control algorithm
Antenna device and radio wave controlled timepiece
Semiconductor, electrooptic apparatus and electronic apparatus
Retractable headlight apparatus for motorcar