Appeal No. 2007-0464
Application 09/964,874
18. Paragraph 23 of Otsuka appears to be concerned with the initial setting of a
tracking offset based on temperature sensing and a reading of corresponding offset data from a
stored table as is depicted in Drawing 3, and it reads as follows:
[0023] Temperature sensor 3A is prepared in the frame of an optical
pickup 4. The data detected by the temperature sensor are inputted into a
microcomputer 15, and temperature is detected. The temperature requirement by
which the control data beforehand doubled with the temperature characteristic of
tracking offset of an optical pickup 4 was decided to be memory’ in a
microcomputer 15 is taken charge of, and it memorizes. For example, according
to the contents of storage which are shown in drawing 3 and which were
beforehand memorized by memory, the data which negate DC component of a
tracking error signal are read with a microcomputer 15, data processing is carried
out by the servo processing IC 3, and the tracking servo of the optical pickup is
carried out with the head amplifier 5.
19. Paragraphs 24 and 25 appear to be concerned with subsequent setting, or
resetting, of the tracking offset based on further temperature sensing and a reading of
corresponding offset data from a stored table as is depicted in Drawing 3, and read as follows:
[0024] Next, the flow chart shown in drawing 2 explains change
operation controlled according to the temperature in the equipment of tracking
offset of the optical pickup 4 in MD recorder of this example. When MD
recorder is in record or a reproduction state, a microcomputer 15 carries out
temperature detection from temperature sensor 3A by the regular time interval
(S1), incorporates the detected data on a microcomputer 15, distinguishes a part
for which temperature requirement or a temperature province, distinguishes the
present temperature, and memorizes it to memory 15’ (S2).
[0025] A microcomputer 15 sets up the data which read the control data
in the present temperature (S3), input into the servo processing IC 3, and negate
offset from the control data beforehand memorized by memory 15’ as control data
of the tracking offset which is adapted for the optical pickup 4 used for every
temperature requirement beforehand, as it is shown in drawing 3 in order to
negate offset for example, and it updates tracking offset control through the head
amplifier 5 (S4).
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Last modified: September 9, 2013