Abstract: The present invention provides a portable individual calling device which performs no indication on the LCD indicator as a measure for preventing decrease in signal-receiving sensitiveness due to CPU noises, wherein the non-indication time period is shortened. For this purpose, the portable individual calling device comprises a receiving unit for receiving a radio signal which contains a selective calling number and message information, an LCD indicator for indicating message information, an address detecting unit for detecting whether the received signal contains its personal selective calling number, and a controlling unit for reading out message information from the received signal in correspondence with the detection of its personal selective calling number and for subjecting such information to data processing.

Abstract: A method and apparatus for secure, remote programming of a receiving device by instructions transmitted in data format, whereby previously stored messages may be selectively updated, capcodes may be reprogrammed, and the pager display may be activated or deactivated.

Abstract: Upon receipt of address data which matches one of a given plurality of capcodes, this pager executes a paging service corresponding to the matching capcode; this pager is characterized in that any capcode or capcodes specified as being invalid are replaced with a capcode or capcodes specified as being valid based on valid/invalid flags each corresponding to respective one of the capcodes.