Abstract:
PROBLEM TO BE SOLVED: To provide a subscription-based distribution service that distributes media contents to a portable device (PMP) via geographically positioned kiosks that support wireless access points.SOLUTION: Coordination between subscribing users of PMPs, vendors who provide kiosks, and a network central controller of a content distribution system allows for: pre-positioning of video content at the kiosks through economically desirable low data rate communication links from a network (dial-up modem, DSL, etc.); coordinated queuing of downloads (partial downloads) between a kiosk to a PMP, P2P downloading between PMPs, and uploads from a PMP to a kiosk; billing/crediting to correspond with such participation in the distribution; and changing priority/selection of pre-positioning of contents at the kiosks to reflect a clientele profile.
Abstract:
PROBLEM TO BE SOLVED: To provide methods and systems for providing enhanced position location in wireless communications.SOLUTION: Embodiments disclosed herein relate to methods and systems for providing improved position-location (e.g., time-of-arrival) measurement and enhanced position location in wireless communication systems. In an embodiment, an access point may replace information (e.g., data) transmission by a "known" transmission (or "reference transmission") at a predetermined time known to access terminals in the corresponding sectors. The access terminals may use the received reference signal to perform a position-location measurement, and report back the measured information. The access point may also send a reference transmission on demand, e.g., in response to a request from an access terminal in need of a location-based service.
Abstract:
PROBLEM TO BE SOLVED: To provide a system and method for providing techniques, which are simple but effective, for communicating an overhead message in a wireless communication system providing access to a distributed network while saving a bandwidth and minimizing power consumption. SOLUTION: A wireless base station connected to a distributed network transmits a series of signatures of an overhead message to a mobile unit. The mobile unit is brought into a wakeup mode to receive the signatures and compares them with signatures stored in the mobile unit. If the signatures received by the mobile unit are different from the signatures stored in the mobile unit, the mobile unit receives the overhead message transmitted by the wireless base station while keeping the wakeup mode. If the signatures received by the mobile unit are identical to the signatures stored in the mobile unit, the mobile unit returns to a sleep mode. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To allow synchronized broadcast to transmit a same broadcast content using a same waveform from multiple transmitters. SOLUTION: Transmitters each apply a same spreading code for broadcast transmissions. In a spread-spectrum communication system having a time division multiplexed forward link, a synchronized broadcast transmission is inserted into a broadcast slot. One embodiment employs an Orthogonal Frequency Divisional Multiplex (OFDM) waveform for the synchronized broadcast. An OFDM receiver is then used to process the received synchronized broadcast transmission. An alternate embodiment implements a Pseudo-random Noise (PN) code for use by multiple transmitters. An equalizer is then employed to estimate the synchronized broadcast transmission. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and an apparatus for preserving power of a remote unit in a dispatch system.SOLUTION: To reduce power consumption of the remote unit in the dispatch system, the remote unit enters a dormant state. A base station (32) transmits a forward link broadcast signal and monitors a common access channel. A first remote unit (10) at short intervals receives and decodes the forward link broadcast signal and determines whether or not the forward link broadcast signal includes active signals (106). If the remote unit determines that the forward link broadcast signal includes no active signals for some time period T, then the first remote unit enters a dormant mode (148). In the dormant mode, the remote unit sporadically receives and decodes the forward link broadcast signal. When this remote unit or any other remote unit on the same net presses push-to-talk buttons (128, 130), then the remote unit transmits a message on the common access channel.
Abstract:
PROBLEM TO BE SOLVED: To provide a distributed infrastructure for wireless data communications. SOLUTION: A mobile user terminal 402 accesses a packet data network 450 through one or more points of a plurality of network access points (404-412). One or more control points (432-440) determine which access point or multiple points the user terminal is to access. Control may be retained in the current control point, or transferred to another control point, whenever it is convenient. There are a plurality of routers, each having an associated home agent (418-420) which determines which foreign agents need to be accessed on behalf of each user terminal. The foreign agents (422-430) forward packets received from a user terminal's home agent to the control point currently controlling communications with the user terminal. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a system and method for minimizing data bottlenecks in low data rate networks (LDRNs) that communicate facsimile transmissions. SOLUTION: An LDRN is a facsimile network having a transmission data rate less than the data rate of FAX machines serviced by the network. The system and method can be implemented in any type of LDRN, including analog and digital wired LDRNs, as well as analog and digital wireless LDRNs (cellular networks, for example). The system and method involve processing the facsimile transmissions in order to make the data rates of the LDRN and the FAX machines compatible. Thus, any potential facsimile data bottlenecks that may occur in the LDRN due to its slower data rate can be minimized. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
A master device images an object device and uses the image to identify the object device. The master device then automatically interfaces with the identified object device, for example, by pairing with the object device. The master device may receive broadcast data from the object device including information about the visual appearance of the object device and use the broadcast data in the identification of the object device. The master device may retrieve data related to the object device and display the related data, which may be display the data over the displayed image of the object device. The master device may provide an interface to control the object device or be used to pass data to the object device.
Abstract:
Embodiments disclosed herein relate to methods and systems for providing improved position-location (e.g., time-of-arrival) measurement and enhanced position location in wireless communication systems. In an embodiment, an access point may replace information (e.g., data) transmission by a "known" transmission (or "reference transmission") at a predetermined time known to access terminals in the corresponding sectors. The access terminals may use the received reference transmission to perform a position-location measurement, and report back the measured information. The access point may also send a reference transmission on demand, e.g., in response to a request from an access terminal in need for a location-based service.
Abstract:
Exemplary embodiments are directed to wireless charging. A charging system (420) may comprise at least one power generation system (402) configured to convert renewable energy to another form of energy and convey the another form of energy. The charging system may further include at least one transmit antenna (426) coupled to the at least one power generation system and configured to receive the another form of energy from the at least one power generation system. Further, the at least one transmit antenna is configured to wirelessly transmit energy to at least one other antenna positioned within an associated coupling-mode region.