Patent ID: 6477547
Filing Date: 2002-11-05
Classification: G06F,Y10S

Abstract:
A processing system comprising a data processing device and a data access device interconnected to implement a predetermined function, said data processing device includinga data select unit disposed to select data, a first conversion unit connected to said data select unit to convert said selected data in accordance with a predetermined method, a first transmission unit connected to said first conversion unit to transmit said selected data and said converted data generated by said first conversion unit to said data access device, a first reception unit receiving data from said data access device, a second conversion unit connected to said data select unit to convert said selected data in accordance with a predetermined method, and a first operation determining unit connected to said first reception unit and said second conversion unit to compare outputs from said first reception unit and said second conversion unit and responding to a result of comparing the outputs from said first reception unit and said second conversion unit by determining an operation of said data processing device, said data access device including: a second reception unit connected to said first transmission unit to receive an output from said first transmission unit, a third conversion unit connected to said second reception unit to convert an output from said second reception unit in accordance with a predetermined method, a first comparator unit connected to said second reception unit and said third conversion unit to compare an output from said third conversion unit and data defined by the output from said second reception unit, a fourth conversion unit connected to said second reception unit to convert the output from said second reception unit in accordance with a predetermined method, and a second operation determining unit connected to said first comparator unit and said fourth conversion unit to respond to a result of the comparison by determining an operation of said data access device and transmitting an output from said fourth conversion unit to said data processing device.