Transmission power restriction
AssigneeNEC Corporation
InventorTeruyuki Motohashi
Life of this patent
Estimating the term…
Abstract
In a mobile information apparatus including a data processing section and a radio communication section, it is checked whether the radio communication section performs radio transmission and, when the radio communication section performs the radio transmission, power consumption of the data processing section is restricted within a predetermined level lower than a normal level. Therefore, the total power consumption of the mobile information apparatus is also restricted within a power consumption level lower than the sum of maximum power consumption thereof.
Claims19
In a combination of an information processing section and a radio communication section, a control method comprising the steps of:
- a) checking and determining whether the radio communication section performs radio transmission in a predetermined communication scheme;
- b) restricting power consumption of the information processing section within a predetermined level upon determining when the radio communication section performs the radio transmission;
- and
- c) releasing power consumption restriction upon determining when the radio communication section switches from radio transmission to radio reception.
A mobile information apparatus comprising:
- a radio transceiver for receiving and transmitting radio signals in a predetermined communication scheme;
- a processor for processing information which is received and transmitted through the radio transceiver;
- and
- an adjuster for adjusting current drain of the processor in synchronization with the predetermined communication scheme such that upon determining when the radio transceiver transmits a radio signal, the current drain of the processor is restricted within a predetermined level,
- wherein the adjuster releases current drain restriction upon determining when the radio transceiver stops radio transmission and receives a radio signal.
A mobile information apparatus comprising:
- a radio transceiver for receiving and transmitting radio signals in a predetermined communication scheme;
- a processor for processing information which is received and transmitted through the radio transceiver;
- an adjuster for adjusting current drain of the processor to be restricted within a predetermined positive level,
- a battery for supplying power to the processor and the radio transceiver;
- and
- a battery monitor for monitoring a remaining voltage of the battery,
- wherein the adjuster restricts the current drain of the processor within the predetermined positive level upon determining when the radio transceiver transmits a radio signal and the remaining voltage of the battery is smaller than a predetermined threshold positive level, for operating said processor at a reduced power level and the adjuster releases the current drain restriction upon determining when the radio receiver receives a radio signal.
Dependencies are inferred from the claim text.