| 摘要 |
PROBLEM TO BE SOLVED: To allow the equipment to conduct press-to-talk operation more surely and smoothly by easily recognizing the propriety of speech through the indication of a speech state. SOLUTION: When a mobile station being a speech opposite party finishes transmission during a speech, a transmission end detection section 6 detects press information denoting the end of transmission of the radio equipment of the speech opposite party sent from a relay station and a display control section 7 commands lighting to an LED 9 based on the detected information to allow the LED 9 to be lighted. When an end of speech signal detection section 4 detects a speech end signal sent from the relay station or a transmission start detection section 5 detects press information sent from the relay station and denoting it that the mobile station being the speech opposite party starts transmission, the display control section 7 gives notice of extinction to the LED 9, which goes off. |
