| 摘要 |
PURPOSE:To recognize the number of times of call by applying a display in a different form in a display device every time the number of times of call is increased and allowing a recipient to confirm the display device. CONSTITUTION:When a decoder 4 receives a call, the call number is collated with a call number stored in a memory 5 and if the relevant call number does not exist in the memory 5, the call number is set to '1', and when it exists, the extracted call number is incriminated by 1. Then the call number is subject to arithmetic processing, and when the call number is 1, a green LED 11 is blinked. When the call number is 2, a red LED 12 is blinked, when the call number is 3, the green and red LEDs are blinked alternately, when the call number is 4, both the LEDs are blinked simultaneously, and when the call number is 5 or over, both the LEDs are continuously lighted. The call number is recognized by the recipient by confirming the blink state and lighting of the LEDs and it is possible to take a proper correspondence. |
