Method for triggering through disc grooves and related optical analysis discs and system
First Claim
1. An optical analysis disc comprising grooves defining corresponding laser-readable tracks and trigger marks that identify respective target regions on the disc, said trigger marks being a radial interruption of said grooves to thereby produce an increased reflection of a laser beam.
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Abstract
An optical analysis disc includes grooves defining corresponding laser-readable tracks and trigger marks that identify respective target regions on the disc. The trigger marks are implemented as a radial interruption of the grooves to thereby produce an increased reflection of a laser beam. There is also provided an optical analysis disc system including a trigger mechanism having a trigger detector adapted to detect interruptions in grooves of an optical analysis disc. A related method for triggering through interrupted grooves of an optical analysis disc includes detecting interruption in the grooves, generating an electrical reflection signal corresponding to the interruptions detected, and elaborating said reflection signal, so that to generate a trigger signal.
87 Citations
12 Claims
- 1. An optical analysis disc comprising grooves defining corresponding laser-readable tracks and trigger marks that identify respective target regions on the disc, said trigger marks being a radial interruption of said grooves to thereby produce an increased reflection of a laser beam.
- 3. An optical analysis disc comprising grooves defining corresponding laser-readable tracks and trigger marks that identify respective target regions on the disc, each of said trigger marks defining a triggering region including a sequence of interruptions that produce an increased reflection of a laser beam, defining a pattern of interrupted grooves encoding data to identify a trigger signal.
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5. A method for triggering through interrupted grooves of an optical analysis disc comprising the following steps:
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detecting interruption in the grooves; generating an electrical reflection signal corresponding to the interruptions detected; and elaborating said reflection signal, so that to generate a trigger signal. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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Specification