Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8180335 | System information modification notification and detection in wireless communications Systems and methodologies are described that facilitate notifying and detecting system information block (SIB) modification in subsequent modification periods. Access points can advertise information in a current SIB indicating a subsequent modification period in wh... | 05/15/2012 |
| 8179876 | Multiple modulation technique for use in a communication system A method for receiving an indication to apply a first modulation scheme to modulate one or more segments of a first portion includes determining a first segment set, having at least one segment of the first portion for applying the first modulation scheme. The metho... | 05/15/2012 |
| 8169956 | Mapping uplink acknowledgement transmission based on downlink virtual resource blocks An acknowledgment (ACK) mapping automation that reduces overhead for a wireless communication systems such as UTRAN-LTE, Global System for Mobile communications (GSM: originally from Groupe Spécial Mobile), High-Speed Downlink Packet Access (HSDPA), or any packet-s... | 05/01/2012 |
| 8160039 | Communications methods and apparatus for use in communicating with access routers and/or other devices acting as communications peers Methods and apparatus for performing peer to peer communications with access routers and non-access router peer devices are described. An access terminal generates a channel estimate estimating the channel between the access terminal and an access router. For at lea... | 04/17/2012 |
| 8144636 | Methods for sending small packets in a peer-to-peer (P2P) network An improved mechanism is provided that facilitates transmission of small packets within an ad hoc peer-to-peer network. A small packet is identified to a receiver within a control channel so that its lower power can be considered in an interference management protoc... | 03/27/2012 |
| 8139531 | Methods for sending small packets in a peer-to-peer (P2P) network An improved mechanism is provided that facilitates transmission of small packets within an ad hoc peer-to-peer network. A small packet is identified to a receiver within a control channel so that its lower power can be considered in an interference management protoc... | 03/20/2012 |
| 8135088 | Pilot transmission and channel estimation for a communication system utilizing frequency division multiplexing A transmitter generates a pilot having a constant time-domain envelope and a flat frequency spectrum based on a polyphase sequence. To generate a pilot IFDMA symbol, a first sequence of pilot symbols is formed based on the polyphase sequence and replicated multiple ... | 03/13/2012 |
| 8107481 | Methods and apparatus for identifying and/or selecting a connection identifier Wireless terminals in a peer to peer system, which desire to communicate traffic signals, acquire a connection identifier associated with traffic transmission request air link resources. The air link resources in the system, in some embodiments, are structured so th... | 01/31/2012 |
| 8089924 | Method and apparatus for high rate packet data transmission In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station tra... | 01/03/2012 |
| 8078111 | Methods and apparatus for using multiple frequency bands for communication Methods and apparatus for using different frequency bands are described. In some embodiments a first frequency band which is a licensed spectrum frequency band is used for peer discovery, device authentication, session establishment between peer devices and/or suppo... | 12/13/2011 |
| 8078110 | Techniques for choosing and broadcasting receiver beamforming vectors in peer-to-peer (P2P) networks One feature provides for establishing an ad hoc peer-to-peer network over an existing channel allocation for another network. To mitigate interference between multiple peer-to-peer devices, a plurality of receiver chains in a receiver device may be configured with b... | 12/13/2011 |
| 8077655 | Method and apparatus for high rate packet data transmission In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station tra... | 12/13/2011 |
| 8077638 | Methods and apparatus for providing quality of service in a peer to peer network Methods and apparatus related to scheduling traffic slots in a wireless communications system, e.g., an ad hoc peer to peer communications network are described. An implemented timing structure includes multiple traffic transmission slots and multiple request blocks... | 12/13/2011 |
| 8072917 | Methods and apparatus supporting adaptive decentralized traffic scheduling for wireless communications Methods and apparatus relating to scheduling of air link resources, e.g., traffic segments, in wireless communications are described. Various described methods and apparatus are well suited to wireless peer to peer networks in which traffic scheduling is decentraliz... | 12/06/2011 |
| 8068859 | Dual event slotted paging A novel and improved method and system for paging a cellular telephone or other wireless terminal using two paging channels that reduces standby mode power consumption described. In one embodiment of the invention, a minimally encoded quick paging channel is establi... | 11/29/2011 |
| 8068530 | Signal acquisition in a wireless communication system Each base station transmits a TDM pilot 1 having multiple instances of a pilot-1 sequence generated with a PN1 sequence and a TDM pilot 2 having at least one instance of a pilot-2 sequence generated with a PN2 sequence. Each base station is assigned a specific PN2 s... | 11/29/2011 |
| 8059609 | Resource allocation to support single-user and multi-user MIMO transmission Techniques for supporting MIMO transmission are described. Users are classified into a first group of users to be scheduled individually for MIMO transmission and a second group of users that can be scheduled together for MIMO transmission. Transmission resources ar... | 11/15/2011 |
| 8027399 | Pilot transmission and channel estimation for an OFDM system with excess delay spread Pilot transmission and channel estimation techniques for an OFDM system with excess delay spread are described. To mitigate the deleterious effects of excess delay spread, the number of pilot subbands is greater than the cyclic prefix length. This “oversampling”... | 09/27/2011 |
| 8027372 | Signal acquisition in a wireless communication system Each base station transmits a TDM pilot 1 having multiple instances of a pilot-1 sequence generated with a PN1 sequence and a TDM pilot 2 having at least one instance of a pilot-2 sequence generated with a PN2 sequence. Each base station is assigned a specific PN2 s... | 09/27/2011 |
| 8023497 | Method and apparatus for dynamic anchoring of CS calls for CS-to-VoIP handoffs A mobile device that is capable of accessing different types of networks such as a circuit-switched network and a packet-switched network is disclosed. A dynamic anchoring mechanism is invoked when the mobile device determines that a circuit-switched call is to be h... | 09/20/2011 |
| 8014455 | Feedback of differentially encoded channel state information for multiple-input multiple-output (MIMO) and subband scheduling in a wireless communication system Techniques for efficiently sending channel state information using differential encoding are described. Differential encoding may be performed across space, across frequency; across space and frequency, across space, frequency and time, or across some other combinat... | 09/06/2011 |
| 8014265 | Eigen-beamforming for wireless communication systems Techniques for sending multiple-input multiple-output (MIMO) transmissions in wireless communication systems are described. In one design, a transmitter sends a first reference signal via a first link, e.g., a cell-specific reference signal via the downlink. The tra... | 09/06/2011 |
| 8009638 | Method for reduced access delay in multiple access attempt exchanges A system and method for reducing access delay associated with multiple access attempt exchanges in a communications network is provided. A system of the present invention may include a mobile station and a base station system for sending and receiving signals; an ai... | 08/30/2011 |
| 8009625 | Method and apparatus for high rate packet data transmission In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station tra... | 08/30/2011 |
| 8005091 | Apparatus and method of generating and maintaining hybrid connection identifications (IDs) for peer-to-peer wireless networks An apparatus and method are disclosed for generating a transmission connection identifier (CID) for a transmitter/receiver pair in a wireless network. The CID may be selected from or mapped to a hybrid CID space comprising a first set of orthogonal CIDs and a second... | 08/23/2011 |
| 8005042 | Method and apparatus for high rate packet data transmission In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station tra... | 08/23/2011 |
| 7995531 | Method and apparatus for high rate packet data transmission In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station tra... | 08/09/2011 |
| 7986728 | Equalizer with combined CCK encoding-decoding in feedback filtering of decision feedback equalizer A decision feedback equalizer includes a chip estimate buffer that forms chip estimates into a vector. A CCK decoder decodes the vector of chip estimates, and a CCK encoder, connected with the CCK decoder, re-encodes the vector of chip estimates into a valid CCK cod... | 07/26/2011 |
| 7984132 | Multi-rate peer discovery methods and apparatus Wireless communications devices, e.g., peer to peer mobile wireless terminals in and ad-hoc peer to peer communications network, support multiple modes of peer discovery operation. In different peer discovery transmit modes peer discovery information is transmitted ... | 07/19/2011 |
| 7957343 | Motion-aware mobile time and frequency tracking A method is provided for compensating for clock drift error and movement error of an access terminal. A forward link error is obtained that is attributable to at least a first error (e.g., clock drift error) component and a second error (e.g., movement error) compon... | 06/07/2011 |
| 7907593 | Staggered pilot transmission for channel estimation and time tracking To allow a receiving entity to derive a longer channel estimate while limiting overhead, a transmitting entity transmits a pilot on different groups of subbands in different time intervals. N subbands in the system are arranged into M non-overlapping groups. Each gr... | 03/15/2011 |
| 7899396 | Efficient operation for co-located WLAN and Bluetooth Techniques to enable efficient operation of co-located WLAN and Bluetooth devices are described. A station (e.g., a cellular phone or a laptop computer) determines the activity of a Bluetooth device and ascertains idle periods of the Bluetooth device. The station co... | 03/01/2011 |
| 7890144 | Successive interference cancellation receiver processing with selection diversity Techniques are provided to support successive interference cancellation (SIC) receiver processing with selection diversity whereby each of NT transmit antennas may be turned on or off. One symbol stream may be transmitted from each transmit antenna. A SIC... | 02/15/2011 |
| 7848285 | Method and apparatus for high rate packet data transmission In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station tra... | 12/07/2010 |
| 7848284 | Method and apparatus for high rate packet data transmission In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station tra... | 12/07/2010 |
| 7848283 | Method and apparatus for high rate packet data transmission In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station tra... | 12/07/2010 |
| 7848282 | Method and apparatus for high rate packet data transmission In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station tra... | 12/07/2010 |
| 7876701 | Control channel design to support one-to-one, many-to-one, and one-to-many peer-to-peer communications A protocol is provided that facilitates downlink concurrent peer-to-peer communications (within a time slot or traffic slot) between one device and many terminals as well as uplink concurrent peer-to-peer communications (within a time slot or traffic slot) between a... | 01/25/2011 |
| 7860036 | Methods and apparatus for including mode information in a frame for system acquisition Methods and apparatus for including mode information in a wireless transmission frame, which is useful for system acquisition. In particular, a first information bit is provided in a preamble of a transmission frame, where the bit is configured to indicate that a wi... | 12/28/2010 |
| 7769383 | Method and system for signaling the state of supplementary services The disclosure is directed to a mobile communication device that is capable of accessing different types of networks such as a circuit-switched network and a packet-switched network. When supplementary services are invoked involving the device, a protocol is used th... | 08/03/2010 |
