Method and apparatus for data retrieval, and optical disk device
Номер патента: EP1146514B8
Опубликовано: 02-03-2005
Автор(ы): Akira Fujitsu Peripherals Limited NANBA, Masakazu Fujitsu Limited TAGUCHI, Toru Fujitsu Peripherals Limited FUJIWARA
Принадлежит: Fujitsu Ltd
Опубликовано: 02-03-2005
Автор(ы): Akira Fujitsu Peripherals Limited NANBA, Masakazu Fujitsu Limited TAGUCHI, Toru Fujitsu Peripherals Limited FUJIWARA
Принадлежит: Fujitsu Ltd
Реферат: Stable and appropriate data retrieval is performed if reproduced signals vary locally because of noises or include regular distortions. This is achieved by a method of adjusting sampling values in sampling signals reproduced from a recording medium that stores data. The method comprises the steps of counting the frequencies of the levels of quantized data, drawing a histogram based on the count, and retrieving accurate data by means of the frequency distribution of the levels in the histogram.
Recording medium apparatus and method for data transmission and apparatus and method for data reproduction
Номер патента: BR9606290A. Автор: Koichi Hirayama,Tadashi Kojima,Toshiyuki Shimada,Shin-ichi Tanaka. Владелец: Matsushita Electric Ind Co Ltd. Дата публикации: 1997-09-02.