Title:
【発明の名称】無線通信装置
Document Type and Number:
Japanese Patent JP2976915
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a reliable temperature control system with a simple configuration by changing an intermittent period of a power supply in the case of an idle state and changing a coding speed and a transmission burst time in the case of a communication state based on a temperature detection means. SOLUTION: A temperature control section 5 receiving temperature data sensed by a temperature sensor 7 compares the temperature with a prescribed setting temperature in the case of an idle state and the comparison result changes a period of switching on/off a switch 6 so as to control a time period of battery saving. On the other hand, in the case of a communication state, the control section 5 provides an output of a temperature control section 11 to control a codec 2 and a transmission reception section 3. In the case that the sensor 7 senses that the case temperature is higher than the setting temperature, the control section 5 changes a transmission speed of the codec 2 from that of coding decoding processing at standard 64kbps into that of coding decoding processing compressed into a 32kbps band so as to reduce the transmission speed. Furthermore, similarly the temperature control to halve the transmission time of a data section is applied to the transmission reception section 3.
Inventors:
OONO KATSUMARU
Application Number:
JP7817597A
Publication Date:
November 10, 1999
Filing Date:
March 28, 1997
Export Citation:
Assignee:
NIPPON DENKI KK
International Classes:
G05D23/00; G05D23/19; H04B7/212; H04B7/26; H04J3/00; (IPC1-7): H04B7/212; H04B7/26; H04J3/00
Domestic Patent References:
| JP313127A |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)