Patent ID: 6915453
Filing Date: 2005-07-05
Classification: G11B

Abstract:
1. A method for controlling a start-up operation of a unit having at least a circuit portion and being connectable to an outside device, comprising the steps of: executing a first self-checking test when a connection between the outside device, and the circuit portion is not recognized, wherein said outside device is used for making a test or adjustment in a process of fabricating said unit; transmitting a predetermined command from said unit to recognize said connection, and ascertaining whether receipt of a control command output from said outside device in response to said predetermined command is detected, wherein said step of transmitting a predetermined command further comprises communicating said predetermined command and said control command between said outside device and said circuit portion through an interface; and executing a second self-checking test including at least a part of said first self-checking test, when said connection between the outside device and the circuit portion is recognized.