公开(公告)号：US3921209A

公开(公告)日：1975-11-18

申请号：US26228772

申请日：1972-06-13

Applicant: MATSUSHITA ELECTRIC IND CO LTD

Inventor： YOSHINO HIROKAZU ,  YAMAGUCHI TETSUO ,  TSUBOKA EIICHI ,  HATANO HIROSHI

IPC: G11B20/10 ,  H03M3/04 ,  H04N5/926 ,  G11B5/02

CPC classification number: G11B20/10527 ,  H03M3/04 ,  H04N5/926 ,  H04N5/9262

Abstract: A magnetic recording and reproducing system including apparatus for converting a signal to be recorded into a Delta PCM code, a sampled value being represented by n bits, and apparatus for applying a signal corresponding to each of the n bits in the form of a NRZ code to each of n magnetic heads arranged in parallel in the transverse direction of a magnetic tape, the n bits being recorded on at least n parallel tracks and being reproduced from the magnetic tape.

公开(公告)号：US3602888A

公开(公告)日：1971-08-31

申请号：US3602888D

申请日：1968-12-09

Applicant: MATSUSHITA ELECTRIC IND CO LTD

Inventor： NISHIYAMA AKIRA ,  YOSHINO HIROKAZU ,  YOSHIDA TOMIO ,  YAMAGUCHI TETSUO

IPC: G06F7/02 ,  G06F15/18

CPC classification number: G06F7/023

Abstract: A learning device having a plurality of magnetic cores which serve as multistage level weight memory elements. In the device, the product of an input and a corresponding weight is delivered from the magnetic core in the form of a digital output, and the sum of digital outputs is compared with a threshold value in a decision circuit to derive an error signal so that the weight carried by each magnetic core can fully automatically be corrected until the actual output coincides with an expected output.

公开(公告)号：US3902121A

公开(公告)日：1975-08-26

申请号：US31232672

申请日：1972-12-05

Applicant: MATSUSHITA ELECTRIC IND CO LTD

Inventor： YOSHINO HIROKAZU ,  YAMAGUCHI TETSUO ,  TSUBOKA EIICHI

IPC: H03J5/02 ,  H03J7/24 ,  H04B1/36

CPC classification number: H03J5/0245 ,  H03J7/24

Abstract: An automatic tuner for television receivers in which the oscillation frequency of a first voltage controlled oscillator in a phase locked loop is brought to a predetermined frequency corresponding to given channel selection information, and the oscillation frequency of a second voltage controlled oscillator is swept until the beat frequency obtained from the first and second voltage controlled oscillators reaches a particular frequency. After the reaching of the practicular frequency, the second voltage controlled oscillator is locked to its oscillation frequency at the instant of reaching the particular frequency, and its output is used as a local oscillator signal.

公开(公告)号：US3638196A

公开(公告)日：1972-01-25

申请号：US3638196D

申请日：1970-07-13

Applicant: MATSUSHITA ELECTRIC IND CO LTD

Inventor： NISHIYAMA AKIRA ,  YOSHINO HIROKAZU ,  YOSHIDA TOMIO ,  YAMAGUCHI TETSUO

IPC: G06K9/62 ,  G06F7/02 ,  G06F15/18

CPC classification number: G06F7/023

Abstract: A learning machine in which threshold values corresponding to the desired output conditions and having a dead zone therebetween are used during the learning process for the discrimination of the output from a memory storing a plurality of standard pattern information, and this discriminating faculty is utilized for the discrimination of input pattern information with respect to a single threshold value having no dead zone. Thus, the precision of discrimination can be remarkably improved due to the fact that the threshold values having a dead zone are used during the learning process, and the learning can be digitally and automatically carried out.

Abstract translation: 一种在学习过程中使用对应于期望输出条件并且具有死区的阈值的学习机器，用于区分来自存储多个标准模式信息的存储器的输出，并且该鉴别教师被用于 相对于没有死区的单个阈值的输入模式信息的区分。 因此，由于在学习过程中使用具有死区的阈值的事实，因此可以显着提高鉴别的精度，并且可以数字和自动地进行学习。