Paging receiver having a plurality of test modes

DETAILED DESCRIPTION Accordingly, an object of the present invention is to provide a paging receiver which improves the above-mentioned conventional systems.
Another object of the invention is to provide a paging receiver in which a test can be made not only of its receiving section, its display device and the contents of its ROM (or Programmable-ROM) but also of its receiving sensitivity and any other desired function.
Still another object of the invention is to provide a paging receiver which can prevent deterioration in reliabiity which might otherwise be caused by erroneous reception of a specific test code for the test mode.
Yet another object of the invention is to provide a portable paging receiver which is adapted to minimize power consumption even during the test mode by activating the battery saving function during the tests other than that for the receiving section.
Still another object of the invention is to provide an improved paging receiver which can be switched to a sequence of test modes for a series of tests by receiving a test code from a test encoder and manipulating a reset switch of the receiver.
According to the present invention, there is provided a paging receiver comprising: a receiving section for receiving a carrier wave modulated with a calling signal including a first signal sequence and either a second or a third signal sequence which follows the first signal sequence; a power supply control for supplying power to the receiving section in response to a first control signal; a controller section for supplying the first control signal to the power supply control for a first predetermined time period in response to the detection of the first signal sequence so that the controller section can detect the second or third signal sequence, supplying the first control signal to the power supply control consecutively in order to shift the receiver to a first test mode when the third signal sequence is detected and shifting the receiver from the first test mode to a second test mode in response to a second control signal; and a switch connected to the controller section means for generating the second control signal