Resources Contact Us Home
Device and process for detecting errors in an integrated circuit comprising a parallel-serial port

Image Number 2 for United States Patent #6173423.

A device for detecting errors with an integrated self-check, on an integrated circuit comprising a serial link control function for constituting an input-output port (109) between a parallel bus (L2CB, C2LB) and a serial link. The integrated circuit comprises a serializer circuit (109.sub.T) on output and a deserializer circuit (109.sub.R) on input. An insertion buffer I-sb has each of its outputs connected to one input of an exclusive OR operation with two inputs. The second input of the exclusive OR operation receives a piece of information (o-s) to be transmitted in order to constitute, with the insertion information issuing from the insertion buffer, a piece of substitute information. An additional buffer (I-tb) makes it possible to compare the sequence supplied as output from the exclusive OR with a sequence stored in the additional buffer (I-tb) in order to validate the transmission of the substitute sequence. A history buffer (HIB) stores characters received from the deserializer and makes it possible to diagnose the error.

  Recently Added Patents
Activated carbon cryogels and related methods
Listing recommendation using generation of a user-specific query in a network-based commerce system
Electronic dispersion compensation within optical communications using reconstruction
Bi-directional, compact, multi-path and free space channel replicator
Stable file system
Probe for ultrasound diagnostic apparatus
Method for forming a film
  Randomly Featured Patents
Body shape portion of a handset
Heat resistant and flame resistant papers
Disk drive system
Combined tape recorder and radio receiver
High-density compactor for fibrous material
Rate control for an MPEG transcoder without a priori knowledge picture type
Vertical insulated gate FET
Charging device for a process cartridge and an image forming apparatus
Computer desk
Negative pressure wound treatment device, and methods