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...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.

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Class 370/503 - Synchronizing


Subclass of Class 370 - Multiplex communications
Definition: Subject matter including a means for insuring that the transmission
No. of patents: 2086
Last issue date: 02/07/2012


1                      
NumberTitleIssue Date
8111719Transmission system
A transmission system includes: a transmission-side device that has a transmission-side clock generation unit that generates a first clock signal on the basis of a reference clock signal; a clock extraction unit that removes a data clock signal superimposed with tra...
02/07/2012
8111718Communication system and method that reduces interference
A method of operating a communication system is disclosed. The method comprises acquiring a first frequency band for a first device to wireles sly communicate a first data stream. The center frequency of the first frequency band is f1. A second frequency ...
02/07/2012
8107502Method and apparatus for monitoring packet networks
A packet probe for a packet network accurately generates and monitors packets within the network. The packet probe supports packet generation and packet transmission. When a packet is ready for transmission, a hardware-based time stamp unit affixes a time stamp to t...
01/31/2012
8107499Speed negotiation for multi-speed communication devices
A method includes defining a pattern of time intervals, each time interval having a respective assigned communication speed, which alternates among multiple communication speeds supported by a first communication device. Synchronization requests are transmitted over...
01/31/2012
8107500Communication control apparatus, communication control method, and computer program
A communication control apparatus includes a packetizing unit configured to generate packets based on coded data; a calculating unit configured to calculate, based on at least one of information regarding the amount of code of the coded data, reception state informa...
01/31/2012
8107501Synchronizing portions of a database with different databases on different nodes of a network
Techniques are disclosed for synchronizing a database related to a first node in a network with multiple nodes. Each node includes a database different from a database on a different node. An inquiry control message is sent to each node in a candidate set of one or ...
01/31/2012
8102883LDP IGP synchronization for broadcast networks
A network element that has a broadcast interface to a broadcast network becoming operational determines whether at least one alternate path exists to the broadcast network. The broadcast interface is to carry traffic on a label switched path. If an alternate path ex...
01/24/2012
8098691Base-band ethernet over point-to-multipoint shared single conductor channel
A method for point-to-point ethernet communication over point-to-multipoint shared single conductor channel topology comprises transmitting an ethernet signal upstream over the point-to-multipoint topology from one end point of the topology to the root of the topolo...
01/17/2012
8098692Method and apparatus for high speed LVDS communication
A method and system communicates payload data over a plurality of low voltage differential signaling (LVDS) channels (50). First device (100) transmits the payload data and synchronization information to the second device (150) over N LVDS chann...
01/17/2012
8094686Method and apparatus for simulating packet delay variation of a multi-switch network
A packet delay variation simulation system has a packet generator, a packet delay variation generator, and a packet delay analyzer to analyze delayed packets. The packet delay variation generator has multiple delay distribution modules that use both a deterministic ...
01/10/2012
8094687Method and apparatus of clock transmission between networks
A method of clock transmission between networks and an apparatus of clock transmission are disclosed, in which a second group of information corresponding to a clock transferred by a first network equipment based on a first protocol, and the second group of informat...
01/10/2012
8094685Systems and methods for synchronizing multiple video streams
A system and method to produce video data by transmitting time information with the video data. The equivalent horizontal and vertical timing at the reception device are reconstructed. The method includes receiving one or more control packets specifying a quantity o...
01/10/2012
8089989Synchronization of nodes on a network
A method for synchronizing at least two nodes on a network including one network node acting as a master node, the master node setting a base time T0,master, and sending elapsed time since T0,master to at least one other node acting as a slave ...
01/03/2012
8089990Apparatus and method for preventing data read error for orthogonal frequency division multiplexing symbol demodulation
Disclosed are an apparatus and a method for preventing data read error for OFDM symbol demodulation. An average time synchronization offset estimating unit estimates average time synchronization offset between a pilot symbol of a time synchronized data frame and pil...
01/03/2012
8089991Network and method for clock synchronization of clusters in a time triggered network
An embodiment of the invention includes a method and network for clock synchronization within a time triggered network using time slots, having at least two clusters. The clusters are connected to a coupling unit that includes a clock alignment control logic. The cl...
01/03/2012
8085817Automatic clock synchronization and distribution circuit for counter clock flow pipelined systems
A clock synchronization buffer for a counter clock flow pipelined circuit including a cascade of processing modules that receive data from a previous module and provide output results to a following module. The clock synchronization buffer receives a clock input sig...
12/27/2011
8081663Time synchronization method and relay apparatus
A time synchronization method for synchronizing times of a first apparatus and a second apparatus includes transmitting, by the first apparatus, a packet to the second apparatus, the packet including the time of the first apparatus, providing, by a relay apparatus t...
12/20/2011
8077745Techniques for unidirectional disabling of audio-video synchronization
This disclosure describes techniques to allow for unidirectional disabling of audio-video synchronization. In particular, a synchronization command is defined for packet-based network protocols. The synchronization command can disable audio-video synchronization in ...
12/13/2011
8073014Method and apparatus for synchronizing nodes
During each node's awake period, each node multicasts the relative time or slot of their next awake period (beaconing interval) to all neighboring nodes. This enables each node to intelligently and independently schedule the time slot of its next transmission based ...
12/06/2011
8068515Faster multimedia synchronization of broadcast streams using router caching of RTCP packets
Synchronization of a multimedia broadcast can be achieved by enabling network devices to re-send saved RTCP packets upon a client's join request. ...
11/29/2011
8064485System and method for providing quality inter-domain network time transport
A method is provided in one example embodiment and includes providing a time protocol assistant associated with a time-synchronized domain (TSD). The TSD includes a set of nodes that are synchronized to a same time source. The TSD has defined egress and ingress edge...
11/22/2011
8064484Enhanced clock control in packet networks
One embodiment of the present invention sets forth a method for autonomously validating the time and frequency data obtained from multiple sources, and generating a suitable estimate of the frequency difference between the client clock and the source. The method inc...
11/22/2011
8059687Algorithm for managing data loss in software demodulators
Embodiments of methods for receiving and processing multi-band signals in wideband and narrowband environments are described herein. Other embodiments may be described and claimed. ...
11/15/2011
8059685Methods and systems for carrying synchronization over Ethernet and optical transport network
The present invention reserves special Ethernet timing packets to mark timing within Ethernet and OTN, and secondarily creates frames within the Ethernet stream through the timing marker packets. The result is standard Ethernet with timing capability that can be tra...
11/15/2011
8059688Synchronizing multiple system clocks
Techniques are disclosed for synchronizing multiple clock sources of a system, and may include: determining time of a first clock at a first and second time instants; determining time of a second clock at a third time instant occurring between the first and second t...
11/15/2011
8059686Method, apparatus and system for guaranteed packet delivery times in asynchronous networks
A method and apparatus for guaranteeing packet delivery times in an asynchronous network includes generating a global timing schedule to synchronize the communication between the terminals of a network and, in response to at least one trigger, transmitting and recei...
11/15/2011
8054859Precesion/speed compromise of a synchronization signal reception device
A reception device is able to receive packets in a communication network comprising at least two stations. The device is capable of receiving packets containing samples of the network which originate from data sampled every period Tsmp, where Tsmp
11/08/2011
8054860Method, system and apparatus for synchronizing time in time-division multiplexing system
A method, system and apparatus for synchronizing time in a time-division multiplexing (TDM) system are disclosed. The method may include: receiving time synchronization information carried in an idle timeslot, where the idle timeslot is in a multiframe of an E1 sign...
11/08/2011
8050296Radio equipment (RE)-based synchronization
A distributed radio base station includes a first radio equipment controller (REC) node, a second radio equipment controller (REC) node, and a radio equipment (RE) node for transceiving information over a radio interface with one or more radio terminals. The first R...
11/01/2011
8036247System and method of synchronizing real time clock values in arbitrary distributed systems
A system and method of determining a master node in a computer system having a plurality of nodes includes establishing a hierarchy of master nodes from the plurality of nodes, wherein the master node synchronizes the plurality of nodes in the computer system with a...
10/11/2011
8031745Downlink synchronization channel and methods for cellular systems
The present invention provides a method of operating a base station transmitter. The method includes providing a cellular downlink synchronization signal having primary and secondary portions, wherein the primary portion employs a corresponding one of a plurality of...
10/04/2011
8023533Data communication system, data transmitting apparatus, data transmitting method, and method for determining packet size and redundancy
A data communication system includes a data transmitting apparatus and a data receiving apparatus. The data transmitting apparatus includes a packetizing section that generates data packets, an encoding section that performs redundant encoding on the data packets in...
09/20/2011
8018970Under sampled clock signal synchronization aid device and device for reconstructing undersampled clock signals, for a packet-switched network
A synchronization aid device is part of receiving communication equipment of an IP network, having a primary clock signal consisting of primary clock pulses spaced apart by a first period. This device comprises i) a required to increment its value by one unit on eac...
09/13/2011
8018971System and method for insertion of time stamp into real time data within a communications network
A system for adding a time stamp to transmission traffic on a wireless network comprises a front end processor that receives a packet from the network and generates a Start Of Frame pulse and a LENGTH field corresponding to a length of the packet. A time stamp gener...
09/13/2011
8014423Reference time distribution over a network
A reference time distribution system and method use a data transmission network having a plurality of nodes to distribute the House Sync signal. A network-wide time signal is generated using a reference time generator, and the network-wide time signal is then distri...
09/06/2011
8014424Method and apparatus for using an unique index set for PSC sequence in a wireless communication system
Systems and methods are provided to generate a set of synchronization channel sequences that optimize time and frequency acquisition. A set of root indices of Zadoff-Chu sequences in a first domain (e.g., time domain) that optimize a performance metric or merit fact...
09/06/2011
8009701Secondary synchronization codebook for E-utran
Providing for secondary synchronization encoding utilizing a primary synchronization channel (P-SCH)-related scrambling code is described herein. Scrambled secondary synchronization codes (SSCs) can be assigned to multiple base stations of a radio access network (RA...
08/30/2011
8009702Method and arrangement for local sychronization in master-slave distributed communication systems
A communication system which consists of several modules—operating in parallel on segments of a packet—to increase speed and handling capacity. One module acts as master, the others are slave modules controlled by control signals derived by the master module. It...
08/30/2011
8005118Method and apparatus for implementing secure clock in device having no internal power source
A method and apparatus for implementing a secure clock having no internal power source are disclosed. The apparatus accesses a host device having an internal power source and transmits and receives data. The apparatus includes a clock control unit, a counter, and a ...
08/23/2011
8005119Integrated circuit
An integrated circuit multiplexes transmission data faster than by a system clock, and transfers a timing pulse Txclk for that multiplexing and a multiplexed signal Txdata from a transmitter chip 100 to a receiver chip 150 through communications by ind...
08/23/2011
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