Abstract: A method and apparatus for saving battery power in a paging receiver includes: supplying power to the receiver for a predetermined time period in an idle mode; analyzing data received during the predetermined time period and checking whether or not the data is a preamble; if it is determined that the data is a preamble, checking whether or not the preamble is an initial preamble; if it is determined that the preamble is an initial preamble, turning off the power supplied to the receiver until the end of the preamble; and at the end of the preamble, supplying power to the receiver to detect wordsync data.

Abstract: In a radio display pager, the display panel is overlaid with a touch sensitive film and a scan pulse generator is provided. When receiving a paging signal and storing a received message, the scan pulse generator is inactive to avoid interference. The scan pulse generator is activated when a physical key is manually operated for displaying virtual keys by applying a first scan pulse to one end of each horizontal path of the touch sensitive film and a second scan pulse to one end of each vertical path of the film. A pair of coordinate signals is derived from the scan pulse outputs from the other ends of the horizontal and vertical paths. When one of the virtual keys is operated, coordinate signals representing its position are produced and, in response, a corresponding message in the memory is displayed. The scan pulse generator is deactivated when the physical key is operated again.