Abstract To economize power consumption of a portable radio terminal
without impairing the transmission quality, a portable radio terminal
of the invention comprises: a field intensity detector (3); a transmission
unit (6); a switch (8) for supplying or cutting a power supply to the
transmission unit; a memory (5); means (15) for setting the portable
radio terminal to operate in a power economy mode; and a control unit
(4) for controlling, when the portable radio terminal is set to operate
in the power economy mode, the switch to cut the power supply to
the transmission unit when the receiving field intensity becomes lower
than a first threshold value and to supply the power supply to the
transmission unit when the receiving field intensity is higher than a
second threshold value, the memory to store the signals to be transmitted
during a time interval when the power supply is cut, and the
transmission unit to transmit the signals stored in the memory when
the power supply is supplied to the transmission unit.
A portable radio terminal comprising: a field intensity detector (3) for detecting a receiving field intensity; a transmission unit (6) for transmitting radio signals to a base
station; a switch (8) for supplying or cutting a power supply to said transmission
unit (6); a memory (5) for storing signals to be transmitted to the base
station; and a control unit (4) for controlling said switch (8) to cut said power
supply to said transmission unit (6) when said receiving field
intensity becomes lower than a first threshold value and to
supply said power supply to said transmission unit (6) when
said receiving field intensity is higher than a second threshold
value, said memory (5) to store said signals to be transmitted
during a time interval when said power supply is cut, and
said transmission unit (6) to transmit said signals stored in
said memory (5) when said power supply is supplied to said
transmission unit (6).
Claim 2
Dependent Claim
29 words
The portable radio terminal recited in claim 1, further comprising
an input device (10) for setting levels of said first threshold value
and said second threshold value from outside.
Claim 3
Dependent Claim
185 words
A portable radio terminal comprising: a field intensity detector (3) for detecting a receiving field intensity; a transmission unit (6) for transmitting radio signals to a base
station; a switch (8) for supplying or cutting a power supply to said transmission
unit (6); a memory (5) for storing signals to be transmitted to the base
station; means (15) for setting the portable radio terminal to operate in a
power economy mode; and a control unit (4) for controlling, when the portable radio terminal
is set to operate in said power economy mode, said switch (8) to
cut said power supply to said transmission unit (6) when said
receiving field intensity becomes lower than a first threshold
value and to supply said power supply to said transmission
unit (6) when said receiving field intensity is higher than a
second threshold value, said memory (5) to store said signals to
be transmitted during a time interval when said power supply
is cut, and said transmission unit (6) to transmit said signals
stored in said memory (5) when said power supply is supplied
to said transmission unit (6).
Claim 4
Dependent Claim
29 words
The portable radio terminal recited in claim 4, further comprising
an input device (10) for setting levels of said first threshold value
and said second threshold value from outside.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.