Vtr program search device

阅读:417发布:2022-03-22

专利汇可以提供Vtr program search device专利检索,专利查询,专利分析的服务。并且PURPOSE: To constitute inexpensively a small-sized program search device by reproducing a program search signal having an index number recorded on each part of video tracks split into plural number.
CONSTITUTION: An AFT generator 3 supplies a 4-frequency AFT signal (a) being the proper frequency division of an oscillated frequency of a crystal oscillater 3 to a switch circuit 12 by using a head switching signal (b) supplied to an input terminal 1. The index number inputted by a ten-key 6 is converted into a binary number having the required number of bits in response to the number of divisions of a magnetic tape 18 by a decoder 7 and the result is inputted to a shift register 10. The signal (a) intermitted corresponding to the index number is mixed with a video audio signal and recorded on the tape 18 by video heads 16, 17. Only the AFT signal is extracted by a low pass filter 20 at the reproduction and the program search is applied simply by the heads 16, 17.
COPYRIGHT: (C)1987,JPO&Japio,下面是Vtr program search device专利的具体信息内容。

高效检索全球专利

专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。

我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。

申请试用

分析报告

专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。

申请试用

QQ群二维码
意见反馈