A method of performing hook switching on behalf of a wireless handset based on wireless charging. The method includes obtaining, by a power transmitter of a telephone base, a handset identifier provided by a wireless handset via a power receiver that is wirelessly coupled to the power transmitter for wireless charging of the wireless handset. The method further includes determining whether the handset identifier matches a stored identifier, and based, in part, on the handset identifier matching the stored identifier, performing, by the telephone base, hook switching on behalf of the wireless handset.

A method of performing hook switching on behalf of a wireless handset based on wireless charging. The method includes obtaining, by a power transmitter of a telephone base, a handset identifier provided by a wireless handset via a power receiver that is wirelessly coupled to the power transmitter for wireless charging of the wireless handset. The method further includes determining whether the handset identifier matches a stored identifier, and based, in part, on the handset identifier matching the stored identifier, performing, by the telephone base, hook switching on behalf of the wireless handset.

A method of performing hook switching on behalf of a wireless handset based on wireless charging. The method includes obtaining, by a power transmitter of a telephone base, a handset identifier provided by a wireless handset via a power receiver that is wirelessly coupled to the power transmitter for wireless charging of the wireless handset. The method further includes determining whether the handset identifier matches a stored identifier, and based, in part, on the handset identifier matching the stored identifier, performing, by the telephone base, hook switching on behalf of the wireless handset.

A method of performing hook switching on behalf of a wireless handset based on wireless charging. The method includes obtaining, by a power transmitter of a telephone base, a handset identifier provided by a wireless handset via a power receiver that is wirelessly coupled to the power transmitter for wireless charging of the wireless handset. The method further includes determining whether the handset identifier matches a stored identifier, and based, in part, on the handset identifier matching the stored identifier, performing, by the telephone base, hook switching on behalf of the wireless handset.

A system and method for driving a solid-state image pickup device including a pixel array unit including unit pixels. Each unit pixel includes a photoelectric converter, column signal lines and a number of analog-digital converting units. The unit pixels are selectively controlled in units of rows. Analog signals output from the unit pixels in a row selected by the selective control though the column signal lines are converted to digital signals via the analog-digital converting units. The digital signals are added among a number of unit pixels via the analog-digital converting units. The added digital signals from the analog-digital converting units are read. Each unit pixel in the pixel array unit is selectively controlled in units of arbitrary rows, the analog-distal converting units being operable to performing the converting in a (a) normal-frame-rate mode and a (b) high-frame-rate mode in response to control signals.

A device for air-to-ground communication between an aircraft and a ground station, said aircraft and said ground station each having antennas for directional radio data transmission. The data transmission is performed in a frequency band from 60 GHz to 90 GHz and the antenna of the ground station transmits and receives data exclusively in a range of angles ? of at least 5 degrees in the upward direction relative to the horizontal plane.

A telephone device is disclosed. The telephone device has a base, a magnetic field generating device, an ear set, a magnetic sensor and a controller. The base has an ear set accommodating area. The magnetic field generating device situates with the base and generates a magnetic field. The ear set detachably connects with the base. The ear set has a magnetic conducted element. The magnetic sensor situates with the base for detecting the magnetic field. The magnetic field detected by the magnetic sensor is reduced due to interference of the magnetic conducted element when the ear set situates at the ear set accommodating area. The controller electronically connects with the magnetic sensor and determines whether the eat set is situated in the ear set accommodating area based on the change of the magnetic field detected by the magnetic sensor.

A telephone device is disclosed. The telephone device has a base, a magnetic field generating device, an ear set, a magnetic sensor and a controller. The base has an ear set accommodating area. The magnetic field generating device situates with the base and generates a magnetic field. The ear set detachably connects with the base. The ear set has a magnetic conducted element. The magnetic sensor situates with the base for detecting the magnetic field. The magnetic field detected by the magnetic sensor is reduced due to interference of the magnetic conducted element when the ear set situates at the ear set accommodating area. The controller electronically connects with the magnetic sensor and determines whether the eat set is situated in the ear set accommodating area based on the change of the magnetic field detected by the magnetic sensor.