| 摘要 |
#CMT# #/CMT# The method involves transmitting a test flow (1.5) comprising a test service constituted of audio and video signals, and receiving the flow. The service is decoded and restituted by a terminal (1.6). Test service restitution incidents are detected. The sensibility of the terminal is established based on test flow transmission power corresponding to a given frequency of the incidents. Physical quantity e.g. sound amplitude, related to the restitution is measured by a sensor e.g. light intensity sensor, near the terminal. The incidents are detected by modifying the quantity. #CMT#USE : #/CMT# Method for measuring sensibility of radio reception of a terminal e.g. mobile telephone or personal digital assistant, receiving digital service. #CMT#ADVANTAGE : #/CMT# The method permits reliable measurement of radio reception of any terminal, having or not having access to system software, by a single operator outside an anechoic chamber, thus preventing disturbances in the measurement due to the presence of operator inside the chamber. The method does not require a communication terminal, and permits variation of position of the terminal so as to obtain three dimensional sensibility diagram of the terminal. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic representation illustrating a radio reception sensibility measuring method. 1.3 : Flow server 1.4 : Transmission antenna 1.5 : Test flow 1.6 : Terminal 1.9 : Audio analyzer #CMT#INDUSTRIAL STANDARDS : #/CMT# The digital service conforms to digital video broadcast - handheld (DVB-H) standard. |
