Interactive video distribution systems – Operator interface – To facilitate tuning or selection of video signal
Reexamination Certificate
2006-12-12
2006-12-12
Vu, Ngoc (Department: 2611)
Interactive video distribution systems
Operator interface
To facilitate tuning or selection of video signal
C725S049000, C725S050000, C725S054000
Reexamination Certificate
active
07150029
ABSTRACT:
A device for reading or writing on optical recording media with disk type recognition capability has an optical scanning device and a focus regulating circuit. The object of the invention is to provide a device of this type which can reliably recognize in a short time the type of the recording medium inserted into the device. Another object of the invention is to provide a corresponding process. These objects are attained in that the disk type recognition capability includes a mirror signal generator, a threshold value generator, a counter and an evaluation unit. The process is based on the utilization of a mirror-signal value of the device for disk type recognition.
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Ebling Mark Jacob
Heredia Edwin Arturo
Niranjan Sithampara
Ozkan Mehmet Kemal
Saeger Timothy William
Dorini Brian J.
Kurdyla Ronald H.
Laks Joseph J.
Thomson Licensing
Vu Ngoc
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