Optical drive controller with a host interface for direct connection to an IDE/ATA data bus

  • US 6,584,527 B2
  • Filed: 06/28/1996
  • Issued: 06/24/2003
  • Est. Priority Date: 06/22/1994
  • Status: Expired due to Fees
First Claim
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1. An optical drive controller to control the communication of data between a storage medium in an optical drive device and a host computer via an IDE/ATA data bus, said data bus for receiving and transmitting data between said controller and said host computer, said optical drive device having drive electronics, said optical drive controller comprising:

  • a storage medium interface for receiving data from said storage medium;

    data error detection and correction circuitry, said detection and correction circuitry including;

    error correction circuitry for performing error correction on data received from said interface and generating corrected data, and error detection circuitry for detecting errors in data prior to transmission to said host computer; and

    a host interface connecting said host computer and said optical drive controller directly via an IDE/ATA data bus, said host interface operable to receive data addresses and commands from said host computer and transmit data to said host computer, and including an ATA command block register address at which to store sequentially contiguous bytes of command data, that are part of the same command, transmitted from the host computer in a single command transfer.

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