A method and apparatus for providing power to e.g., a chargeable device via a radio frequency link. In one aspect, a method of providing power to a chargeable device via radio frequency link comprises generating a substantially un-modulated signal. The method further comprises radiating a substantially un-modulated radio frequency (RF) signal to the chargeable device via a transmit antenna based on the substantially un-modulated signal. The method further comprises powering or charging the chargeable device with power delivered by the substantially un-modulated RF signal.

Method and apparatus for delivering energy to an electrical or electronic device via a wireless link

Exemplary embodiments are directed to wireless power. A portable chargeable device may comprise an energy storage device configured to receive power from a power source. Furthermore, the portable chargeable device may comprise a transmitter including at least one antenna and configured to transmit power stored in the energy storage device within an associated near-field region.

Wireless power transfer for chargeable devices

Wireless energy transfer system. Antennas are maintained at resonance with High Q. Techniques of maintaining the high-Q resonance matching are disclosed.

Wireless power apparatus and methods

A channel structure and mechanisms that support effective and efficient allocation and utilization of the reverse link resources. In one aspect, mechanisms are provided to quickly assign resources (e.g., a supplemental channel) as needed, and to quickly de-assign the resources when not needed or to maintain system stability. The reverse link resources may be quickly assigned and de-assigned via short messages (412, 418) exchanged on control channels on the forward and reverse links. In another aspect, mechanisms are provided to facilitate efficient and reliable data transmission. A reliable acknowledgment/negative acknowledgment scheme and an efficient retransmission scheme are provided. Mechanisms are also provided to control the transmit power and/or data rate of the remote terminals to achieve high performance and avoid instability.

Reverse link channel architecture for a wireless communication system

A power exchange device includes: a connection portion that is connected to another device; a wireless communication portion that performs wireless communication with a power exchange device in the vicinity; a power exchange portion that exchanges power with the power exchange device in the vicinity; a power management portion that causes the power exchanged by the power exchange portion to be input and output between the connection portion and the other device; and a power control portion that, after the wireless communication portion has performed the wireless communication with the power exchange device in the vicinity, controls whether to cause the power exchange portion to exchange power with the power exchange device in the vicinity depending on a power source state of the other device.

Power Exchange Device, Power Exchange Method, Program, and Power Exchange System

PROBLEM TO BE SOLVED: To improve the utilization efficiency of a multimode wireless communication system. SOLUTION: In the multimode wireless communication system, on a data transmission side, data to be transmitted are divided, and respective divided parts are transmitted in parallel by a plurality of wireless communication systems. On a reception side, the respective parts of the data transmitted in parallel respectively through the plurality of wireless communication systems are received, and the respective parts of the data that are received are connected to reproduce the transmitted data. COPYRIGHT: (C)2011,JPO&INPIT

Multimode wireless communication system, and multimode wireless communication method

PROBLEM TO BE SOLVED: To provide a mobile terminal having a specific means to grasp a state and to provide a positional information system which is efficiently operated by using the means. SOLUTION: The mobile terminal is provided with a geomagnetism sensor for sensing the geomagnetism, compares an output value of the geomagnetism sensor with a preset first setting value, discriminates that the mobile terminal is at a standstill when the output value of the geomagnetism sensor is consecutive at a value smaller than the first setting value for a first setting time set in advance, discriminates that the mobile terminal is moving when the output value of the earth magnetism sensor is fluctuated at the first setting value or more, and transmits the discrimination result to a base station. The base station decreases the number of position registration processing times of the mobile terminal to the base station when the mobile terminal is e.g. at a standstill and increases the number of position registration processing times when the mobile terminal is moving. COPYRIGHT: (C)2003,JPO

Mobile terminal and positional information system

PROBLEM TO BE SOLVED: To provide a charge system for a portable apparatus which can perform the charge to a portable apparatus from a computer, and prevent the enlargement of the computer and the cost up. SOLUTION: CPU311 detects whether a computer 2 is in external power mode or in battery mode, based on the detection result of a voltage sensor 312. In the case of external power mode, the CPU 311 sends a charge permission signal to a portable telephone 1 when it receives a charge request, and sets a switch 319 to ON, and supplies power to the portable telephone 1 through a connection cable 5. Moreover, the CPU 311 detects the residual quantity of a battery 318, based on the detection result of a battery managing circuit, and if the detection result is at or over the tolerable value, it supplies power from the battery 318 to the portable telephone 1, and if it is under the tolerable value, it outputs a charge rejection signal to the portable telephone 1. The portable telephone 1 informs the user of the drop of the residual quantity of the battery 308 by alarm or warning sound when it receives the charge rejection signal. COPYRIGHT: (C)2001,JPO

Charge system for portable apparatus

PROBLEM TO BE SOLVED: To realize antenna directivity control in an information terminal, provided with a variable directivity antenna using a comparatively simple configuration. SOLUTION: The information terminal 3 includes a transmitter/receiver 231 and a processing unit 232, and the variable directivity antenna 1 includes a main antenna 201 and a plurality of auxiliary antennas 202-207, to which the transmitter/receiver 231 directly supplies a high frequency signal. Variable phase shift circuits 212-217 deciding a phase shift of a reflection wave are respectively connected to each auxiliary antennas 202-207, a control circuit 220 receives directivity data 229 from a CPU 232 of the information terminal 3 and analyzes the data to control the phase shift of the variable phase shift circuits 212-217. The phase shift in each auxiliary antenna is adjusted, so that the wave fronts of radio waves emitted or emitted secondarily from the main antenna 201 and a plurality of the auxiliary antennas 202-207 coincide in a specific direction, and the variable directivity antenna 1 is controlled to have the directivity in the direction. COPYRIGHT: (C)2002,JPO

Information terminal provided with variable directive antenna

PROBLEM TO BE SOLVED: To enable transmission power control for each code channel, without incurring increase of power consumption or circuit scale in performing multicode transmission, which uses plural code channels in a code division multiplex access(CDMA) terminal by a frequency spread modulation. SOLUTION: Variable gain circuit 16A and 16B are equipped respectively on the output side of spread circuits 15A and 15B provided for every code channel, outputs of the variable gain circuits 16A and 16B are summed by adders 17 and 18, quadrature modulation is performed by a modulator 20, and a transmission signal is obtained. Furthermore, a variable gain circuit 22 for adjusting the level of the transmission signal is provided. Adjustment of an average transmission power of code channels is performed by the variable gain circuit 22, and these individual adjustments are performed by the variable gain circuits 16A and 16B.

正貴市原

Papers

Multimode wireless communication system, and multimode wireless communication method

Mobile terminal and positional information system

Charge system for portable apparatus

Information terminal provided with variable directive antenna

Method and device for power transmitting adjustment for cdma terinal

正貴 市原

Papers

Multimode wireless communication system, and multimode wireless communication method

Mobile terminal and positional information system

Charge system for portable apparatus

Information terminal provided with variable directive antenna

Method and device for power transmitting adjustment for cdma terinal

正貴市原