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。
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