Claims
- 1. A storage apparatus, comprising:
a rotating recording medium for recording information; a mechanism for performing at least a write operation onto said rotating recording medium; and, an acceleration sensor for detecting a shock, wherein if an output from said acceleration sensor exceeds a predetermined threshold, said write operation is inhibited during a write inhibit period, wherein a duration of said write inhibit period is selected based at least in part on one or more of: a time span in which said acceleration sensor output exceeds said threshold, a peak value of said acceleration sensor output, and a waveform of said acceleration sensor output.
- 2. A storage apparatus as recited in claim 1, wherein said write inhibit period is longer than a period that said output from said acceleration sensor exceeds said predetermined threshold.
- 3. A storage apparatus as recited in claim 1, wherein said write inhibit period is selected by varying a predetermined fixed time period based at least in part on said time span in which said acceleration sensor output exceeds said threshold.
- 4. A storage apparatus as recited in claim 1, wherein said write inhibit period is selected by varying a predetermined fixed time period based at least in part on said peak value of said acceleration sensor output.
- 5. A storage apparatus as recited in claim 1, wherein said acceleration sensor is a gravitational acceleration sensor.
- 6. A storage apparatus as recited in claim 1, wherein said acceleration sensor is a gyro-meter.
- 7. A storage apparatus as recited in claim 1, wherein said acceleration sensor is a semiconductor sensor.
- 8. A storage apparatus as recited in claim 1, wherein said storage apparatus is a hard disk drive.
- 9. A storage apparatus as recited in claim 1, wherein said storage apparatus is removable from a host system.
- 10. A storage apparatus as recited in claim 1, wherein said rotating recording medium is an optical disk.
- 11. A storage apparatus as recited in claim 1, further comprising:
means for monitoring an output from said acceleration sensor, and, if said monitored output exceeds a predetermined threshold, outputting a shock out signal; a latch means for outputting a latch signal at a first level during said write inhibit period from a time at which said shock out signal is input; a write gate signal generation means for outputting a write gate signal at the first level when a write permission is given; and a logic circuit enabling a write onto said rotating recording medium when said latch signal is at a second level other than said first level and when said write gate signal is at the first level.
- 12. A storage apparatus as recited in claim 11, wherein the means for monitoring the output from said acceleration sensor monitors the output with respect to only one predetermined threshold.
- 13. A storage apparatus as recited in claim 11, wherein the latch means is a single latch logic circuit, no other latch logic circuit providing signals to the logic circuit enabling the write onto the rotating recording medium.
- 14. A storage apparatus, comprising:
a rotating recording medium for recording information; a mechanism for performing at least a write operation onto said rotating recording medium; an acceleration sensor for detecting a shock, said acceleration sensor providing output upon detecting a shock; means for monitoring an output from said acceleration sensor, and outputting a shock out signal based on said acceleration sensor output; a latch means for outputting a latch signal at a first level during a write inhibit period from a time at which said shock out signal is input, wherein said write inhibit period is selected based on said output of said acceleration sensor; a write gate signal generation means for outputting a write gate signal at the first level when a write permission is given; and a logic circuit enabling a write onto said rotating recording medium when said latch signal is at a second level other than said first level and when said write gate signal is at the first level.
- 15. A storage apparatus as recited in claim 14, wherein said latch means is a single latch logic circuit, no other latch logic circuit providing signals to the logic circuit enabling the write onto the rotating recording medium.
- 16. A storage apparatus as recited in claim 14, wherein said write inhibit period is selected based at least in part on a time span in which said acceleration sensor output exceeds a predetermined threshold.
- 17. A storage apparatus as recited in claim 14, wherein said write inhibit period is selected based at least in part on a peak value of said acceleration sensor output.
- 18. A storage apparatus as recited in claim 14, wherein said write inhibit period is selected based at least in part on a waveform of said acceleration sensor output.
- 19. A storage apparatus as recited in claim 14, wherein said write inhibit period is longer than a period that said output from said acceleration sensor exceeds said predetermined threshold.
- 20. A storage apparatus as recited in claim 14, wherein said write inhibit period is selected by varying a predetermined fixed time period based at least in part on said time span in which said acceleration sensor output exceeds said threshold.
- 21. A storage apparatus as recited in claim 14, wherein said write inhibit period is selected by varying a predetermined fixed time period based at least in part on said peak value of said acceleration sensor output.
- 22. A storage apparatus as recited in claim 14, wherein said acceleration sensor is a gravitational acceleration sensor.
- 23. A storage apparatus as recited in claim 14, wherein said acceleration sensor is a gyro-meter.
- 24. A storage apparatus as recited in claim 14, wherein said acceleration sensor is a semiconductor sensor.
- 25. A storage apparatus as recited in claim 14, wherein said storage apparatus is a hard disk drive.
- 26. A storage apparatus as recited in claim 1,4 wherein said storage apparatus is removable from a host system.
- 27. A storage apparatus as recited in claim 14, wherein said rotating recording medium is an optical disk.
- 28. An information recording method in a rotating storage apparatus comprising a rotating recording medium for recording information, a head for performing at least a write operation onto said rotating recording medium, and an acceleration sensor for detecting a shock, said method comprising:
outputting a shock out signal if an output from said acceleration sensor exceeds a predetermined threshold; outputting continuously a signal at a first level during a write inhibit period in response to the input of said shock out signal, wherein a duration of said write inhibit period is selected based at least in part on one or more of: a time span in which said acceleration sensor output exceeds said threshold, a peak value of said acceleration sensor output, and a waveform of said acceleration sensor output; generating a logical AND signal of a logical negation signal of the signal at a first level and a write gate signal output, said write gate signal output being at the first level when a write permission is given; and enabling a write onto said rotating recording medium when said logical AND signal is at the first level.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2000-089857 |
Mar 2000 |
JP |
|
RELATED APPLICATIONS
[0001] This application is a continuation of U.S. patent application Ser. No. 09/813,081 to Kisaka et al., filed Mar. 19, 2001.
Continuations (1)
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Number |
Date |
Country |
Parent |
09813081 |
Mar 2001 |
US |
Child |
10793318 |
Mar 2004 |
US |