Having Error Detection Or Correction Patents (Class 340/7.44)
-
Patent number: 10715465Abstract: An asset tracking system has a plurality of anchors. A tag communicates with the anchors as it is moved by a user being tracked by the system, and data based on communication between the tag and at least one of the anchors is transmitted to a server. The server determines a location of the tag based on the data and detects an occurrence of an event based on the location. The server also transmits to each of the anchors a tag alert message having a tag identifier identifying the tag and an event indicator associated with the occurrence of the event. At least one of the anchors transmits the tag identifier and the event indicator to the tag, which issues a warning to the user in response to tag alert message.Type: GrantFiled: July 11, 2018Date of Patent: July 14, 2020Assignee: Synapse Wireless, Inc.Inventors: David Ewing, Mark Guagenti, Wade C. Patterson
-
Patent number: 10177814Abstract: Embodiments include methods of powerline communications using a preamble with band extension is provided. A method may include receiving a packet data unit PDU. Bit-level repetition is applied to at least a portion of the PDU to create a repeated portion. Interleaving is performed per a subchannel. Pilot tones are inserted in the interleaved portion. Each data tone is modulated with respect to a nearest one of the inserted pilot tones. The PDU is transmitted over a power line.Type: GrantFiled: August 3, 2015Date of Patent: January 8, 2019Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Il Han Kim, Tarkesh Pande, Anuj Batra
-
Patent number: 10091764Abstract: Enhanced paging mechanisms are proposed for Machine Type Communication (MTC) devices in 3GPP networks. First, adaptive paging is proposed to adaptively allocate extra paging occasions for MTC devices with no extra procedure or power consumption on normal UEs. Second, group paging is proposed to simultaneously page a plurality of MTC devices with one paging. Group paging is controlled in different levels for optimized signaling and easier management. In one embodiment, group broadcasting and group release are used. Third, paging with response policy is proposed to pre-define or dynamically configure paging response policies for MTC devices.Type: GrantFiled: July 1, 2016Date of Patent: October 2, 2018Assignee: MEDIATEK INC.Inventors: Chia-Chun Hsu, Hung-Yu Wei, Guan-Yu Lin, Ching-Chun Chou
-
Patent number: 10049552Abstract: An asset tracking system has a plurality of anchors. A tag communicates with the anchors as it is moved by a user being tracked by the system, and data based on communication between the tag and at least one of the anchors is transmitted to a server. The server determines a location of the tag based on the data and detects an occurrence of an event based on the location. The server also transmits to each of the anchors a tag alert message having a tag identifier identifying the tag and an event indicator associated with the occurrence of the event. At least one of the anchors transmits the tag identifier and the event indicator to the tag, which issues a warning to the user in response to tag alert message.Type: GrantFiled: March 21, 2017Date of Patent: August 14, 2018Assignee: Synapse Wireless, Inc.Inventors: David Ewing, Mark Guagenti, Wade C. Patterson
-
Patent number: 9999001Abstract: A power control method and a device are provided. A network device generates, according to a coverage ratio of actual coverage performance between a second user direct connection communication device and a first user direct connection communication device to expected coverage performance of the first user direct connection communication device, a power adjustment indication message, and sends the power adjustment indication message to the first user direct connection communication device; and the first user direct connection communication device controls transmit power according to the power adjustment indication message.Type: GrantFiled: July 28, 2017Date of Patent: June 12, 2018Assignee: Huawei Technologies Co., Ltd.Inventor: Changqing Yang
-
Patent number: 9619989Abstract: An asset tracking system has a plurality of anchors. A tag communicates with the anchors as it is moved by a user being tracked by the system, and data based on communication between the tag and at least one of the anchors is transmitted to a server. The server determines a location of the tag based on the data and detects an occurrence of an event based on the location. The server also transmits to each of the anchors a tag alert message having a tag identifier identifying the tag and an event indicator associated with the occurrence of the event. At least one of the anchors transmits the tag identifier and the event indicator to the tag, which issues a warning to the user in response to tag alert message.Type: GrantFiled: May 1, 2014Date of Patent: April 11, 2017Assignee: Synapse Wireless, Inc.Inventors: David Ewing, Mark Guagenti, Wade C. Patterson
-
Patent number: 9402147Abstract: Enhanced paging mechanisms are proposed for Machine Type Communication (MTC) devices in 3GPP networks. First, adaptive paging is proposed to adaptively allocate extra paging occasions for MTC devices with no extra procedure or power consumption on normal UEs. Second, group paging is proposed to simultaneously page a plurality of MTC devices with one paging. Group paging is controlled in different levels for optimized signaling and easier management. In one embodiment, group broadcasting and group release are used. Third, paging with response policy is proposed to pre-define or dynamically configure paging response policies for MTC devices.Type: GrantFiled: July 10, 2012Date of Patent: July 26, 2016Assignees: NATIONAL TAIWAN UNIVERSITY, MEDIATEK, INC.Inventors: Chia-Chun Hsu, Hung-Yu Wei, Guan-Yu Lin, Ching-Chun Chou
-
Patent number: 9239843Abstract: A method for performing storage system de-duplication. The method includes accessing a plurality of initial partitions of files of a storage system and performing a de-duplication on each of the initial partitions. For each duplicate found, an indicator comprising the metadata that is similar across said each duplicate is determined. For each indicator, indicators are determined that infer a likelihood that data objects with said indicators contain duplicate data is high. Optimized partitions are generated in accordance with the chosen indicators. A de-duplication process is subsequently performed on each of the optimized partitions.Type: GrantFiled: December 15, 2009Date of Patent: January 19, 2016Assignee: Symantec CorporationInventors: Mukund Agrawal, Srineet Sridharan
-
Patent number: 8660812Abstract: Calibration equipment for calibrating multiple test stations in a test system is provided. Each test station may include a test unit, a test chamber with an over-the-air antenna, and a radio-frequency (RF) cable that connects the test unit to the test chamber. Reference devices under test (DUTs) may be used to calibrate uplink and downlink path loss (e.g., OTA path loss, RF cable path loss, and variations of the test unit) associated with each test station. The reference DUTs may calibrate each test station at desired frequencies to generate a path loss table. Once calibrated, the test chambers may be used during production testing to test factory DUTs. During production testing, the transmit/receive power efficiency of each factory DUT may be calculated based on values in the path loss table to determine whether a particular production DUT is a passing or failing DUT according to pass/fail criteria.Type: GrantFiled: February 25, 2011Date of Patent: February 25, 2014Assignee: Apple Inc.Inventors: Justin Gregg, Tomoki Takeya, David A. Donovan
-
Patent number: 8606304Abstract: A paging signal transmission method according to the present invention includes: notifying, from a radio base station (eNB) to a mobile station (UE), a discontinuous reception interval and a total number of the groups, the discontinuous reception interval representing an interval at which discontinuous reception of the paging signal (PCH) is performed; determining, at the mobile station (UE), a timing for receiving the paging signal on the basis of the notified discontinuous reception interval and the notified total number of the groups; receiving, at the mobile station (UE), the paging signal transmitted from the radio base station (eNB), at the determined timing; and performing, at the mobile station (UE), incoming call processing, when the received paging signal is a paging signal addressed to the mobile station (UE).Type: GrantFiled: September 11, 2008Date of Patent: December 10, 2013Assignee: NTT DoCoMo, Inc.Inventors: Mikio Iwamura, Minami Ishii
-
Patent number: 8564453Abstract: A method and system for use in indicating errors in connection with devices, wherein at least one of the devices comprises a display is disclosed. An error indicator suitable for indicating an error in connection with the device is stored. The error indicator is mapped to a potential error in connection with the device. An error is detected in connection with the device. The error in connection with the device is determined in response to detecting the error. Based on determining the error, the error indicator is displayed on the display for enabling determination of the error in connection with the device.Type: GrantFiled: September 7, 2011Date of Patent: October 22, 2013Assignee: EMC CorporationInventors: Todd Morneau, Jon Busenkell
-
Patent number: 8144812Abstract: A communications node can receive a plurality of communication signals, each including a block of data estimates with respective quality metrics. Each block of data estimates can be derived from an original block of data sent over different wireless paths, or from a derived block of data estimates sent over a different wireless path. A data combining circuit can be used to combines the blocks of data estimates as a function of the respective quality metrics to produce an output set of data estimates with a derived quality metric.Type: GrantFiled: February 8, 2008Date of Patent: March 27, 2012Assignee: QUALCOMM IncorporatedInventor: Dilip Krishnaswamy
-
Patent number: 7737822Abstract: A method recognizes whether a transponder designed for communicating with a communication station belongs to one of at least two groups of transponders. First, for each group of transponders, a check data block that is significant for the group of transponders is generated. Then, the data from the check data block that is significant for the group of transponders is evaluated for the recognition of whether the transponder belongs to the group of transponders.Type: GrantFiled: October 31, 2003Date of Patent: June 15, 2010Assignee: NXP B.V.Inventors: Franz Amtmann, Michael Cernusca, Christian Scherabon
-
Patent number: 7019616Abstract: A messaging system for determining whether a wireless message has been transmitted includes a wireless transmitter, a messaging controller and a transmission monitor. The transmission monitor receives all wireless messages transmitted by the transmitter and provides them to the messaging controller for comparison with message requests that were sent to the transmitter by the messaging controller. If a particular wireless message has not been received by the transmission monitor and fed back to the messaging controller within a predetermined amount of time, the messaging controller triggers at least one controlling action such as re-sending the message request to the transmitter, switching channels in the transmitter or notifying a system administrator.Type: GrantFiled: July 22, 2003Date of Patent: March 28, 2006Inventor: Jorge D. Fernandez
-
Publication number: 20030027536Abstract: A signal correction method and receiver receives an asynchronous wireless signal including a code signal, and determines whether the code signal is discriminated as a regular code. When the determined code signal is not discriminated as the regular code, the signal correction method and receiver changes a sampling time for the asynchronous wireless signal within a predetermined range on sampling. When the code signal is still not discriminated as the regular code after changing the sampling time, the signal correction method and receiver changes a tuning frequency of a local oscillation signal.Type: ApplicationFiled: July 29, 2002Publication date: February 6, 2003Applicant: YAZAKI CORPORATIONInventor: Hiromichi Hanaoka
-
Patent number: 6433669Abstract: A radio paging receiver including a data memory (1) for memorizing message data and error indication data to overwrite the message data, a control unit (2) for overwriting the message data with the error indication data when the message data contains an error and transmitting for message display the message data overwritten with the error indication data, a display unit (5) for displaying the message data (including the error indication data in presence of the error), a code programmer (4) for setting a program for entering the error indication data in correspondence to code identification in response to an indication request, and an error identification memory (3) for rewritably memorizing the error indication data in correspondence to the code identification.Type: GrantFiled: April 28, 1999Date of Patent: August 13, 2002Assignee: NEC CorporationInventor: Hiroyasu Kuramatsu
-
Patent number: 6420960Abstract: A selective call unit (SCU) (122) is used for receiving a sequence of interspersed message fragments (FIG. 4) belonging to a plurality of messages transmitted by a messaging system. The SCU (122) receives a message length command from the messaging system indicating a total message length of a message pending transmission from the messaging system. Each message fragment includes a message portion of the plurality of messages and information indicating the length of the message fragment. The SCU (122) then determines whether there is sufficient memory available for receiving the message according to the message length command. The SCU (122) reserves memory space equivalent to the total message length when the total message length is equal to or less than available memory space, and disallows reception of the message when the total message length is greater than available memory space.Type: GrantFiled: September 30, 1996Date of Patent: July 16, 2002Assignee: Motorola, Inc.Inventors: Jheroen P. Dorenbosch, Alain C. Briancon