首页 / 专利库 / 控制系统 / 家庭自动化 / Voice recording/reproducing device

Voice recording/reproducing device

阅读:582发布:2021-12-22

专利汇可以提供Voice recording/reproducing device专利检索,专利查询,专利分析的服务。并且PURPOSE: To select a memory constitution according to application by connecting a dynamic RAM to a static RAM or to a ROM as a voice data storing memory.
CONSTITUTION: A recording/reproducing device has an area 4 for the dynamic RAM and an area 5 for the static RAM/ROM. When the dynamic RAM is combined to the static RAM, a message for which long preservation is necessary is stored into the static RAM for which memory backup is possible, and the message for which short preservation is sufficient can be stored into the dynamic RAM whose cost per bit is inexpensive and which can be easily made into mass storage. When the dynamic RAM is combined to the ROM, the message in a constant format is stored into the ROM area, it is used only for reproduction, and for sound recording/reproducing, the dynamic RAM area 4 is used, therefore the device is optimal for the application such as home automation, which requires many types of guidance. Thus, the memory can be efficiently used for various purposes.
COPYRIGHT: (C)1990,JPO&Japio,下面是Voice recording/reproducing 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