Abstract: Systems, methods, and apparatus for geo-location using known target co-calibration are disclosed. In one or more embodiments, a method for geo-location of a target involves receiving, by at least three elements on a vehicle, at least one station signal from at least one station in a known direction from the vehicle. The method further involves calculating, by at least one processor, a roll estimate and a pitch estimate of the vehicle using at least one station signal. Also, the method involves receiving, by at least three elements on the vehicle, at least one target signal from the target. Further, the method involves calculating, by at least one processor, an azimuth direction and an elevation direction of the target using the roll estimate, the pitch estimate, and at least one target signal.

Abstract: Embodiments of the present invention disclose a method and a corresponding apparatus for displaying an arc menu index, which are used to display index characters on an arc display bar. The method according to an embodiment of the present invention includes: receiving a menu expanding instruction; and expanding an arc menu index on a display according to the menu expanding instruction, where the arc menu index includes an index operation area, an index pointer, and index characters; the index operation area is an area encompassed by an arc border line displayed on the display and a display frame intersecting the arc border line, the index characters are arranged along the arc border line, and the index pointer is located in the index operation area and is configured to indicate a selected index character.

Abstract: A first communication device receives a plurality of training signals associated with a transmit beamforming training portion of a current iteration of a beamforming procedure between the first communication device and a second communication device. A receive antenna weight vector (AWV) is applied to an antenna array as each of the plurality of training signals is received. A channel estimate is determined based on reception of the plurality of training signals, and feedback is determined based on the channel estimate. The feedback is transmitted to the second communication device as part of the current iteration of the beamforming procedure.

Abstract: An encoded information reading (EIR) terminal can comprise a microprocessor communicatively coupled to a system bus, a memory, a communication interface, and a pluggable imaging assembly identified by a type identifier and configured to acquire an image comprising decodable indicia. The imaging assembly can comprise a two-dimensional image sensor configured to output an analog signal representative of the light reflected by an object located within the field of view of the imaging assembly. The EIR terminal can be configured to output, by processing the analog signal, the raw image data derived from the analog signal and/or a decoded message corresponding to the decodable indicia. The imaging assembly can be communicatively coupled to the system bus via an imaging assembly interface comprising a plurality of wires and a multi-pin connector. The imaging assembly interface can comprise one or more wires configured to carry the imaging assembly type identifier.

Abstract: A system and method for partial bandwidth communication. The system includes a device that has a transceiver configured to connect to a network, a memory storing an executable program and a processor. The program causes the processor to perform operations including receiving data to be transmitted to second device, determining if the data uses less than a predetermined bandwidth used as a unit for a carrier aggregation, determining a plurality of sub-bands in the predetermined bandwidth, each sub-band including at least one pilot and a plurality of frequency tones, receiving network information from the second device, the network information indicating a preferred sub-band of the sub-bands, assigning one of the sub-bands to the second device based upon the network information, generating a packet including an indication, the indication indicating the assigned sub-band; transmitting the packet to the second device and transmitting the data in the assigned sub-band.

Abstract: Systems and techniques relating to wireless communications are described. A described technique includes identifying devices to receive spatially steered data frames during a transmission opportunity (TXOP), the data frames being included in a multi-user frame; transmitting, during the TXOP, request to send (RTS) information to the identified devices; receiving clear to send (CTS) responses from the identified devices; determining a bandwidth configuration for the multi-user frame based on the CTS responses; and transmitting, during the TXOP, the multi-user frame to the identified devices in accordance with the bandwidth configuration. The bandwidth configuration can indicate one or more frequency bands that are available during at least a portion of the TXOP.

Abstract: A multichannel wireless local area network (WLAN) using multiple radio frequency (RF) channels simultaneously for a basic service set (BSS) is described. The multichannel WLAN provides efficient use of RF bandwidth and improves throughput. An access point of the multichannel WLAN communicates with client devices using at least two parallel RF channels, which can be located in two different RF bands. The access point supports connections to client devices using a “legacy” mode over a single logical channel mapped to a single RF channel and includes data traffic, control traffic, and management frames combined. The access point also supports connections to client devices using a high efficiency WLAN mode having multiple logical channels, each logical channel associated with one or more physical RF channels. The multiple logical channels include a management channel for management frames and a separate high efficiency WLAN data channel to carry data traffic and control traffic.

Abstract: A wireless local area network (WLAN) device processes received samples for a radio frequency channel in an unlicensed radio frequency band to detect radio frequency interference from a long term evolution (LTE) wireless communication system. The WLAN device performs a correlation of received time-domain samples to detect the presence of a cyclic prefix for an orthogonal frequency division multiplexing (OFDM) symbol used by the LTE wireless communication system. The WLAN device searches for cross-correlation peaks (1) that exceed a peak power threshold value, (2) that a ratio of which exceed a ratio threshold, and (3) that are separated by a time period corresponding to the OFDM symbol. The WLAN device detects the presence of the LTE wireless communication system without decoding the OFDM symbols.

Abstract: A signal field is generated to include (i) a field to indicate that a physical layer (PHY) data unit is a control frame, and (ii) one or more of a frame control field, a receiver address (RA) field, and a cyclic redundancy check (CRC) field. A PHY data payload (i) that includes one or more of a service field, a transmitter address (TA) field, a network ID field, and a CRC field, and (ii) that omits an RA field is generated. The PHY data unit is generated to include (i) a preamble, (ii) a PHY header having the SIG field, and (iii) the PHY data payload. The PHY data unit is transmitted.

Abstract: A set of channels is scanned, each channel in the set having a first bandwidth. When it is determined that one or more channels in the set of channels are not being utilized by one or more other wireless communication systems, a channel not being utilized is selected as a primary channel for a wireless communication system. When it is determined that all channels in the set of channels are being utilized by one or more other wireless communication systems, (i) a channel in the set that is aligned with a primary channel of another wireless communication system is selected as the primary channel, or (ii) a channel in the set that overlaps with a secondary channel of another wireless communication system is selected as the primary channel, where the secondary channel of the other wireless communication system has a bandwidth greater than the first bandwidth.

Abstract: In a method for generating a data unit for transmission in a wireless network, a physical layer (PHY) preamble is generated. In generating the PHY preamble, a first indicator is generated to indicate at least one of (i) whether the data unit includes data offloaded from a mobile telephony network separate from the wireless network, or (ii) whether the data unit (a) was generated by, or (b) is addressed to, a communication device that supports offloading of data from the mobile telephony network to the wireless network. The first indicator is included in the PHY preamble. Additionally, a media access control layer (MAC) header is generated. The data unit is generated to include the PHY preamble and the MAC header. The data unit is then caused to be transmitted.

Abstract: An apparatus for use in decoding a bar code symbol includes a first integrated circuit chip with a wafer level camera, at least one light source, and a plurality of contact pads on a surface of the chip and a second integrated circuit chip with a processor, memory, plurality of contact pads on a surface of the chip, and plurality of contact pads on another surface of the chip. The apparatus includes a PCB having a plurality of contact pads disposed on at least one surface of the PCB and wherein the first and second integrated circuit chips are vertically stacked on the PCB and the plurality of contact pads on the first and second integrated circuit chips interface with the contact pads of the second integrated circuit chip and PCB. The apparatus is operative for processing image signals generated by the WLC for attempting to decode the bar code symbol.

Abstract: A data portion of a physical layer (PHY) data unit is generated to include a service field that consists of eight or less bits. When it is determined that the PHY data unit is to be generated according to a first mode of operation of a long range communication protocol, the PHY data unit is generated according to a first format to include the data portion. When it is determined that the PHY data unit is to be generated according to a second mode of operation of the long range communication protocol, the PHY data unit is generated according to a second format to include the data portion, including using a slower clock rate as compared to the first format. The second mode of operation provides longer range communications as compared to the first mode of operation.

Abstract: A method of generating packets for transmission in a wireless communication system, wherein each packet includes a SIG field that includes a first SIG subfield, includes generating a data packet and a null data packet. Generating the data packet includes generating information bits of the first SIG subfield of the data packet and generating the data portion of the data packet. The information bits of the first SIG subfield of the data packet indicate, to a receiving device, a length corresponding to a data portion of the data packet. Generating the null data packet includes generating information bits of the first SIG subfield of the null data packet. The information bits of the first SIG subfield of the null data packet indicate, to a receiving device, a first physical layer (PHY) parameter value associated with the null data packet. The first PHY parameter value is not a length value.

Abstract: A deserializer includes an input interface configured to receive an N-bit serialized stream at a source clock frequency; a modified-tree deserializing architecture that receives the first N?1 bits of the serialized stream from the input interface and generates N?1 parallel outputs corresponding to the first N?1 bits; and a last-bit flip-flop that directly samples the input interface to obtain an Nth bit, such that all N bits are available within one source clock cycle after the Nth bit arrives at the input interface.

Abstract: A system including a nonce module and an encryption module. The nonce module is configured to generate a nonce for each packet of a plurality of packets to be encrypted using a first temporal key. Each nonce includes a packet number that is different than packet numbers associated with other nonces generated by the nonce module for the plurality of packets. The packet number is greater than N bits in length, where N is an integer greater than 40. The encryption module is configured to encrypt, without reusing a value of the packet number, more than 2(N?1) packets of the plurality of packets using (i) the first temporal key and (ii) the nonces corresponding to the more than 2(N?1) packets using Galois/Counter Mode encryption.

Abstract: A touch device for determining real coordinates of multiple touch points is provided. The touch device for determining real coordinates of the multiple touch points comprises a plurality of electrodes and a scanning circuit having a Normal Scanning Circuit and a Split Scanning Circuit connected to said electrodes for eliminating ghost coordinates of the multiple touch points from raw coordinates to output the real coordinates of the multiple touch points. The method of determining real coordinates of multiple touch points on the touch device is also provided.

Abstract: A laser scanning symbol reading system includes an analog scan data signal processor for producing digital data signals, wherein during each scanning cycle, a light collection and photo-detection module generates an analog scan data signal corresponding to a laser scanned symbol, a multi-channel parallel scan data signal processor/digitizer processes the analog scan data signal along multiple cascaded multi-stage signal processing channels, to generate digital data signals corresponding thereto, while a synchronized digital gain control module automatically processes the digital data signals in response to start of scan (SOS) signals generated by a SOS detector.

Abstract: A method for generating signals to be transmitted within a BSS channel, where a set of component channels is collectively coextensive with the BSS channel, includes determining that a first duplicate, in frequency, of a low bandwidth mode data unit will be located at an edge of the BSS channel. Each duplicate includes OFDM tones and has a bandwidth less than the narrowest channel of the component channels. The OFDM tones in each duplicate include one or more data tones, one or more pilot tones, and one or more guard tones. The method also includes generating a transmission signal comprising the duplicates, at least in part by scaling down at least one data tone, and/or zeroing out at least one data tone, of the first duplicate in response to determining that the first duplicate will be located at an edge of the BSS channel.

Abstract: The invention relates to an array substrate for a display device and to a method for manufacturing an array substrate comprising a thin-film transistor (“TFT”). An array substrate according to an embodiment of the invention comprises a source electrode, a gate electrode and a drain electrode, wherein the gate electrode is located on a first metal layer, the source electrode and the drain electrode are located on a second metal layer, and in the case that dislocation occurs between the first metal layer and the second metal layer, the area of the overlapping region between the source electrode and the gate electrode keeps constant.