Abstract: A mobile terminal with a solar cell is disclosed. The mobile terminal has a main body, a battery and a flip cover. A receiver portion, a data display and a keypad are formed on the upper surface of the main body. The improvement comprises a solar cell attached to the outer surface of the flip cover to be exposed to the outside. According to the present invention, there is provided the mobile terminal having a solar cell, which is capable of providing sufficient electric power to the mobile terminal while the mobile terminal is positioned in a normal state where the upper surface of the mobile terminal is directed upward.

Abstract: A system for a wireless mobile station is disclosed. The system enables the mobile station to adaptively adjust sleep durations and wakeups during a low power idle mode between paging channel slots. The adjustment of sleep durations and wakeups are based on number of key-presses or other input/output (I/O) activities within a fixed number of paging channel slots. The adjustment increases standby time for the mobile station.

Abstract: The invention provides a radio circuit realizing a desired receiving characteristic even when a strong-level interfering wave is received and operating with small power when no interfering wave is received. The radio circuit comprises a receiving circuit for selecting a signal having a desired frequency from received signals and demodulating the signal, an input-power detector for detecting power P1 of the receiving circuit, a received-power detector for detecting power P2 of a signal selected by the receiving circuit, and a reception control circuit for controlling the receiving circuit. The reception control circuit controls the receiving circuit at a low distortion by increasing the power consumption of a circuit included in the receiving circuit and thereby expanding the linear operation range when the power P1 detected by the input-power detector is larger than a predetermined value t1 and the power P2 detected by the input-power detector is smaller than a predetermined value t3.

Abstract: Latency in receiving and detecting paging messages at a wireless terminal is reduced by employing a unique “super” paging time slot format. A paging super time slot includes a plurality of prescribed time slots. Each wireless terminal is associated with cyclically recurring super time slots. A super slot is associated with one or more wireless terminals. A base station always selects the first available time slot in a super time slot to transmit a paging message to a wireless terminal that is associated with the super time slot. Each wireless terminal monitors every time slot in the associated super time slot until either detecting reception of its associated paging message or detecting an empty time slot. In another embodiment of the invention, a unique partially overlapping super time slot format is employed in which a super time slot has at least one time slot common to its adjacent super time slots.

Abstract: When an automatic battery detector detects that the remaining capacity of a battery has become lower than a predetermined value, a central processing controller lengthens the continuous operation time by reducing power consumption. The central processing controller controls a radio communication device to switch the operation mode from class 2 to class 3. Class 2 provides a high output level, and class 3 provides a low output level. Alternatively or additionally, the central processing controller controls a D/A conversion amplifier circuit to turn off a Dolby system.

Abstract: When the amount of remaining battery power is limited, a battery life can be extended while established function can be maintained available enough. A battery remaining power amount monitoring portion 4 monitors the amount of remaining battery power. On lighting the backlight within a liquid crystal display 1, when a controlling portion 6 determines the amount of remaining battery power to be higher than or equal to a predetermined level based on the result of monitoring in the battery remaining power amount monitoring portion 4, the controlling portion 6 causes the width of a pulse outputted to an LED driving portion 5 to be a determined width, and when the controlling portion 6 determines the amount of remaining battery power to be lower than the predetermined level, it causes the width of a pulse outputted to the LED driving portion 5 to be a narrower width than the determined width.

Abstract: A battery-driven electric equipment includes a detector for detecting a voltage of the battery and a calculator for calculating an available photographing number based on the voltage detected by the detector. The available photographing number calculated by the calculator is displayed by an indicator.

Abstract: Disclosed is a method of displaying available service time in a mobile telephone including the steps of (a) determining whether or not a presently measured charging level value X of a battery is greater than a power-down threshold level value when the mobile telephone is powered on; (b) displaying an icon corresponding to the presently measured charging level value X of the battery, the icon indicative of a plurality of degrees, if it is determined whether or not the currently measured charging level value X of the battery is greater than the power-down threshold level value; (c) updating a available service time value Y per a unit level and storing it in a available service time-per-unit level memory when the completion of speaking by telephone is sensed if the mobile telephone is being used; and (d) reading the available service time value Y per the unit level from the available service time-per-unit level memory, and then calculating a available service time Z by using the read available service time value

Abstract: A security system to enable authenticated access of an individual to a protected area, including a remote control unit (22) with a transponder (28), carried by the individual, which transmits an identification code group on reception of an interrogation signal. A control unit located within the protected area transmits an interrogation signal when activated by the individual, and verifies the identification code group received from the transponder. Access to the protected area will only be permitted on positive verification of the right to access. The transponder (28), contained within the remote control unit (22), is a passive transponder which obtains a supply voltage from the interrogation signal transmitted by the control unit (16) and then feeds this to a supply voltage rail.