Information recording and reproducing apparatus with self-diagnosis information storage mechanism
AssigneeSony Corporation
InventorsShimya Morita, Fumiyoshi Abe
Life of this patent
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Abstract
An information recording and reproducing apparatus having a self-diagnosis information storage mechanism is provided. This apparatus stores self-diagnosis information without increasing the storage capacity thereof and erasing important error information. According to the present invention, any inconforming of the apparatus itself or the quality of a signal recorded in the recording medium and error information regarding thereon is stored in a memory through discrimination/control device so that the information is read out from outside and at the same time, when a vital error occurs, storage of error information thereafter is inhibited while, as regards, information not stored, only the logic sum thereof is stored.
Claims6
An information recording and reproducing apparatus having a self-diagnosis information storage mechanism for storing self-diagnosis information indicative of a result of self-diagnosis of operating conditions of each of sections constituting the apparatus and adapted to record and reproduce an information signal into and from a recording medium, which apparatus comprises:
- detection means for detecting abnormalities in each section of said information recording and reproducing apparatus and abnormalities in any signal recorded onto said recording medium and a signal reproduced from said recording medium, and outputting error data indicating a detection result;
- storage back-up means for storing said error data;
- discrimination/control means for determining whether or not the error data should be stored in said storage means in accordance with the error data outputted from said detection means, and for controlling a storage operation of said storage means;
- and
- control means for reading out the error data stored in said storage means from outside in order to make sure of abnormalities in said information recording and reproducing apparatus, recording signals and reproducing signals, and
- wherein said discrimination/control means operates such that when said error data shows an occurrence of an abnormality vital to said information recording and reproducing apparatus, storage of subsequent error data is inhibited and as regards such storage-inhibited error data, a logic sum of only data incident thereto is stored.
An information recording and reproducing apparatus having a self-diagnosis information storage mechanism for storing self-diagnosis information indicative of a result of self-diagnosis of operating conditions of each of sections constituting the apparatus and adapted to record and reproduce an information signal into and from a recording medium, which apparatus comprises:
- detection means for detecting abnormalities in each section of said information recording and reproducing apparatus and abnormalities in any signal recorded onto said recording medium and a signal reproduced back from said recording medium, and outputting error data indicating a detection result;
- storage back-up means for storing said error data;
- discrimination/control means for determining whether or not the error data should be stored in said storage means in accordance with the error data outputted from said detection means and for controlling a storage operation of said storage means;
- and
- control means for reading out the error data stored in said storage means from outside in order to make sure of abnormalities in said information recording and reproducing apparatus, recording signals, and reproducing signals;
- and
- wherein said discrimination/control means, operates such that when said error data shows an occurrence of an abnormality vital to said information recording and reproducing it stores said error data for a predetermined period of time and then inhibits the storage of subsequent error data and as regards the storage inhibited error data, a logic sum of only those data incident thereto is stored.
Dependencies are inferred from the claim text.