Radio selective calling receiver

专利名称：Radio selective calling receiver发明人：Satoshi Takahashi申请号：US08/869974申请日：19970605公开号：US05909639A公开日：19990601

摘要：A conductive frame for supporting a display section is higher in cost than a resinframe, and causes electric contact with other parts and a deterioration in sensitivity dueto noise radiations to the antenna. When a radio selective calling receiver is in a normalstandby state, since a display driving section (50) is in an inoperative state, a displaydetecting section (60) detects the non-execution of a display operation and sends a non-display operation signal to an intermediate- frequency section (20). In the intermediate-frequency section (20), a switch section (22) selects a filter (23) in accordance with thisnon- display operation signal and connects it between a radio section (10) and ademodulating section (21). When the user performs an operation of displaying timedisplay information, calendar display information, or stereotyped expression displayinformation on a display section (40) ion this normal standby state, the display drivingsection (50) is set in an operative state. The display detecting section (60) detects theexecution of a display operation, and sends a display operation signal to theintermediate-frequency section (20). In the intermediate- frequency section (20), theswitch section (22) selects a filter (24) in accordance with this operation signal andconnects it between the radio section (10) and the demodulating section (21).

申请人：NEC CORPORATION

代理机构：Whitham, Curtis & Whitham

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