146results about How to "Reduce data transfer rate" patented technology

A method and a system for dynamically detecting and correcting anomalous pixels in the raw data taken from an image sensor array such as a CCD or a CMOS sensor array, thus allowing the use of dumb cameras to capture digital images for subsequent use by an intelligent host—such as being displayed on a computer monitor. This invention uses software algorithms running on an intelligent host processor to dynamically correct the anomalous pixels in the raw data taken from an image sensor array typical of those in a digital still or a video camera. Using the combination of a dumb camera which provides raw data to an intelligent host, which does all the subsequent image processing, the system works by scanning an image frame for pixels that vary more than a specified amount in their brightness value from their neighboring pixels and designating those as defective pixels. The location and frequency of the photosites sending the defective pixels are stored in a statistical database in the computer's memory. The brightness value of a defective pixel is then replaced by a local brightness value obtained from the defective pixel's neighboring pixels. The process includes video subsampling, meaning that the defective pixel detection is carried out and repeated at a pre-specified frame rate to ensure optimum detection and correction at a minimal level of scanning. A statistical database is kept so that truly anomalous pixels can over time be distinguished from false detection of true anomalies in the target image, lighting or other environmentally induced anomalies.

A portable computer includes a battery and a connection to an external power source, a two-speed data storage device being supplied power from one or more of the battery and the external power source, and a controller attached to the storage device. With the invention, when the storage device is powered by the internal battery, the controller not only reduces the rotation speed and the clock rate of the storage device, but also reduces the power consumption of the read/write electronics module inside the disk drive by lowering the power supply voltage for the write driver inside said module and lowering the tail currents for the amplifier stages in the readback amplifier inside said module. When the storage device is powered by an external power source, the controller will run the storage device at full speed and highest clock rate, and will provide the write driver inside the read/write electronics module with a power supply voltage high enough to accommodate the resulting higher data rate, and will provide tail currents in the amplifier stages of the readback amplifier high enough to accommodate the higher required bandwidth for the readback amplifier.

A modular disk memory apparatus provides a modularly expandable, multi-gigabyte auxiliary memory for a computer or other host electronic device, and includes multiple, parallel serial data channels to maximize bidirectional data transfer rates between the apparatus and the host device. Maximization of READ/WRITE data transfer rates within the apparatus is achieved by utilizing a large number of small hard disk drives, typically eight 2.5-inch drives on each of a plurality of Disk Storage Modules, each including a plug-in printed circuit board capable of holding two 5-+E,fra 1/4+EE inch drives, thereby increasing the maximum data transfer rate per unit volume of the modules by a factor of two. Maximization of bidirectional data transfer rates between the apparatus and host device over that attainable using a single serial data channel such as a coaxial, quadaxial or fiber optic cable, is achieved by parsing or demultiplexing data to be transmitted from a single parallel channel onto p paralleled cables, thereby increasing the maximum transmittal rate by p. Data received over the parallel data channels is multiplexed or concatenated to comprise a data stream on a single parallel channel. Reconstruction data is embedded in data contained in the p parallel data channels specifying the number q of channels employed, where 1</=q</=p thereby configuring the demultiplexer to concatenate that number of data channels onto a single parallel data bus.

In a cellular radio communication system, a base station or a mobile station has a TA (Time Alignment)-range-out detection function, so that when a TA-range-out state that is unable to compensate with a guard interval is detected, the transmission condition of an uplink signal at the mobile station is changed by the mobile station autonomously or by the base station and the mobile station cooperatively.

Mobile station transmits a scheduling request message to base station to request a grant for transmitting packets in a cellular mobile communication network. Base station transmits at least a deactivation scheduling grant message to mobile station to deactivate packet transmission of mobile station. Mobile station fails to receive the first grant message but successfully receives the second grant message. Upon receiving a scheduling grant confirmation message responding the second grant message from mobile station, base station transmits an activation scheduling grant message to mobile station.

Disclosed herein is mobile middleware, a context monitoring method, a context-aware system, and a context-aware service provision method, which support energy-efficient context monitoring. The mobile middleware receives a request for a CMQ from context-aware application programs, receives sensor data from sensors, monitors whether the CMQ is satisfied, and transmits an event to the context-aware application programs according to results of the monitoring. In this case, the mobile middleware controls the sensors so that only sensor data required to determine whether the CMQ is satisfied needs to be transmitted so as to reduce energy consumption during the performance of the monitoring. Therefore, the mobile middleware can perform energy-efficient context monitoring, required by the context-aware application programs.

A radio base station transmits periodic load indications based on the measured reverse link load to a plurality of mobile stations transmitting on a reverse link channel. If the measure reverse link load is within a first predetermined range, the radio base stations transmits a load indication instructing mobile stations transmitting on the reverse link to change their transmission rate probabilistically. If the reverse link load is within second predetermined range outside the first predetermined range, the radio base station transmits a load indication instructing mobile stations transmitting on the reverse link to change their transmission rate deterministically.

Voice over Internet Protocol (VoIP) transfer is provided over radio links between mobile stations and base stations with a mechanism to schedule initial transmission within voice spurts when semi-persistent allocation of radio resources is employed. The radio link is changed during the voice spurt by allocating different physical resource blocks or by changing transmission parameters with given rescheduling intervals. The scheduling is informed from the base station to involved MS by using data link layer VoIP packet padding bits. The radio link can also be changed per initiative of the MS so that the MS codes a predetermined request into data link layer padding bits of an uplink VoIP packet. The requests from the MS typically involve a change of audio coding mode or informing of the present packet buffer status for VoIP packets at the MS.

Provided is a wireless communication device that receives at least one communication packet containing data rate information, including: a storage unit that receives the at least one communication packet and stores, in a memory unit, the data rate information contained in the at least one communication packet; a display data generation unit that generates display data rate information to be used for display, based on the data rate information stored in the memory unit; and a display unit that displays the display data rate information generated by the display data generation unit.

Provided is a data storage device including a current detector. The data storage device includes a plurality of memory devices, a detector, and a power manager. The detector detects a current inputted from a power source. The power manager manages consumption power of the plurality of memory devices according to a result of the detection provided from the detector.

Examples of imaging microsatellites are described that have an imaging system and antenna system disposed within the microsatellite body when the microsatellite is in a non-deployed state. The properties of the antenna system can be adjusted such that the antenna system does not impact, contact, or displace the imaging system when the microsatellite is in the non-deployed state. The properties of the antenna system can be adjusted such that the antenna system does not contact or impact the body of the microsatellite or any other structure when the microsatellite transitions to a deployed state. The antenna system can be configured to achieve a desired gain and/or data transmission rate by adjusting properties of the antenna system based on the radiation pattern of an antenna feed and geometric constraints imposed by the imaging system. Examples of methods for designing such imaging microsatellites are provided.

The invention provides a CQI information receiving method, transmitting method, receiving device, and transmitting device. The CQI information receiving method includes sending high-level configuration signaling to a terminal; and receiving the CQI information from the terminal, wherein the CQI information is determined based on a CQI form which is obtained based on the high-level configuration signaling. According to the invention, the problem that the high data transmission reliability, low data transmission rate, and low system spectral efficiency cannot satisfy the coverage of the enhanced MTC terminal in the prior art is solved, and the effects of high data transmission reliability, low data transmission rate, and low system spectral efficiency required by the coverage of the enhanced MTC terminal can be achieved.

A broadband dual-polarized omni-directional antenna and a feeding method using the same are provided. By setting a vertically polarized antenna and a horizontally polarized antenna each in co-axial, the horizontally polarized antenna is attached to an upper surface and a lower surface of the attaching plate respectively by two arms of a folded dipole and the two arms connect to an inner conductor and an outer conductor of a feed line so that the dual-polarized antenna may have a comparatively broad bandwidth. At the same time, since the dual-polarized ceiling antenna has a good isolation effect and coverage balance, it may work as the MIMO antenna in the LTE and WLAN systems effectively and may be used in the 2G and 3G networks to improve the data transmission rate.

A relay device is provided. The relay device includes: an acquisition unit acquiring data necessary for an upgrade processing from an upgrading tool, which performs the upgrading processing to an ECU connected to a vehicle-mounted network; a relay unit providing the data, via the vehicle-mounted network, to a target ECU which is subject to the upgrade processing; a suspend instructing unit transmitting, via the vehicle-mounted network, a suspend command which instructs the non-target ECU to shift to a suspend state in which a transmission of other data to the non-target ECU via the vehicle-mounted network is suspended in response to a start of the upgrade processing; and a cancel instructing unit instructing, via the vehicle-mounted network, the non-target ECU to cancel the suspend state when the upgrade processing is completed.

High noise immunity communication systems are provided for voice communications among emergency responders, in which first and second wireless devices employ near field spread spectrum data modems to transfer digital audio data between a responder mask or helmet and a secondary device affixed to the responder's clothing or uniform to allow the responder to broadcast messages to other responders and to hear broadcasts from other responders.

The invention discloses an intelligent energy-saving system for controlling the wireless internetworking of office building environment, which comprises a central controller and area control subsystems. End control equipment is arranged in each area control subsystem; the central controller is connected with a wireless coordinator; each end control equipment is in signal connection with a wireless routing controller which is in signal connection with the wireless coordinator; and the end control equipment, the wireless routing controller and the wireless coordinator are all based on a ZigBee communication protocol and meet IEEE802.15.4 standard. The intelligent energy-saving system solves the technical problem that a relatively larger measurement and control network cannot be formed in a conventional wireless control system, also solves the problems of the high power consumption, low rate and high cost of the conventional building intelligent control system, ensures that manual control is effective when equipment communication or control is at fault and avoids the paralysis of the whole system.

A communication protocol for ultra-wideband communications is provided. The present invention provides compatibility and interoperability between ultra-wideband communications devices within various types of networks. In one embodiment, combined, or interleaved data frames having both high and low data transfer rate capability are provided. The low data transfer rate may be used for initial discovery of the type of network that is being accessed, and the high data transfer rate may be used to quickly transfer data within networks that have a high data transfer rate capability. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

In the present invention, the overhead data transmission rate in a multicarrier communication system (1) may be changed and/or selected. More specifically, this rate may be selected during an initial negotiation process and/or during a steady state mode of operation.