Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8050911 | Method and apparatus for transmitting speech activity in distributed voice recognition systems A system, method, apparatus, signal-bearing medium, and means for transmitting speech activity in a distributed voice recognition (VR) system. The distributed voice recognition system includes a local VR engine in a subscriber unit (102) and a server VR engin... | 11/01/2011 |
| 7715822 | Secure bootstrapping for wireless communications A mutual authentication method is provided for securely agreeing application-security keys with mobile terminals supporting legacy Subscriber Identity Modules (e.g., GSM SIM and CDMA2000 R-UIM, which do not support 3G AKA mechanisms). A challenge-response key exchan... | 05/11/2010 |
| 7696905 | Method and apparatus for controlling the operational mode of electronic devices in response to sensed conditions A system is disclosed that senses physical characteristics of an electronic device. The system controls the electronic device in response to the sensed physical characteristics. The system includes a control subsystem. The control subsystem includes a time trigger a... | 04/13/2010 |
| 7612626 | Programmable varactor for VCO gain compensation and phase noise reduction A programmable varactor apparatus may include multiple binary weighted varactors controlled by multiple digital varactor bits. A programmable varactor apparatus may include a plurality of binary weighted varactors, and a control to selectively disable one or more of... | 11/03/2009 |
| 7596190 | System, method, and apparatus for correction of code doppler shift A method of signal reception according to one embodiment of the invention includes compensating for an estimated or measured Doppler shift during integration of a correlated signal. Such a method also includes determining a composite peak position and correcting thi... | 09/29/2009 |
| 7577785 | Content addressable memory with mixed serial and parallel search A mixed serial-parallel content addressable memory (CAM) includes serial CAM cells and parallel CAM cells that are arranged in multiple (N) columns and multiple (M) rows. Each row includes at least one serial CAM cell and at least two parallel CAM cells. The M rows ... | 08/18/2009 |
| 7577256 | Counter initialization, particularly for radio frames A method for protecting traffic in a radio access network connected to at least two core networks. The method comprises maintaining a core-network-specific authentication protocol and a radio-bearer-specific ciphering process, and generating, for each ciphering proc... | 08/18/2009 |
| 7385920 | Flow admission control for wireless systems An apparatus for a wireless communication system that includes means for determining available resources in the wireless communication system and means for determining an admission of a flow. ... | 06/10/2008 |
| 7366462 | Method and apparatus for seamlessly switching reception between multimedia streams in a wireless communication system Techniques to seamlessly switch reception between multimedia programs are described. For “continued decoding”, a wireless device continues to receive, decode, decompress, and (optionally) display a current program, even after a new program has been selected, unt... | 04/29/2008 |
| 7333440 | Radio link protocol enhancements to reduce setup time for data calls An improved method and system for determining round-trip time (RTT) during a radio link protocol (RLP) wireless communication link. The RTT estimate is negotiated by both sides of the RLP communication link without the need for the 3-way handshake generally required... | 02/19/2008 |
| 7328159 | Interactive speech recognition apparatus and method with conditioned voice prompts An improved system for an interactive voice recognition system (400) includes a voice prompt generator (401) for generating voice prompt in a first frequency band (501). A speech detector (406) detects presence of speech energy in a secon... | 02/05/2008 |
| 7319872 | System and method for mobile switching center initiated service negotiation A system and method for providing mobile switching center (MSC) initiated service negotiation in a wireless communication system. If a new call arrives for a subscriber unit while the subscriber unit is already on the traffic channel, a change in the service configu... | 01/15/2008 |
| 7308260 | Method and apparatus for supporting access network (AN) authentication Methods and apparatus are presented herein for allowing a keyless access terminal (AT) to access a packet serving data node (PSDN) over a service network stream without deactivating the authentication functions of the authentication network stream. ... | 12/11/2007 |
| 7305084 | Fast encryption and authentication for data processing systems Methods and apparatus are presented for secure, authenticated communication and data storage. The methods can be based on other methods such as IAPM, in which the encryption and authentication keys are of the same strength. In the HR-IAPM mode, a sender encrypts the... | 12/04/2007 |
| 7305092 | Method and system to accelerate cryptographic functions for secure e-commerce applications A device and method for accelerating functioning of a software application having multi-layer, high overhead protocols, wherein the device has a processor (12) operating a software application (20) having a multi-layer protocol; a high performance proc... | 12/04/2007 |
| 7295531 | Mobile station assisted timing synchronization in a CDMA communication system In the present invention, the slave base station attains synchronization with the reference base station through messages transmitted from and received by a mobile station either in the soft handoff region between the reference base station and the slave base statio... | 11/13/2007 |
| 7286499 | Methods and apparatuses for fast power control of signals transmitted on a multiple access channel A method and apparatus for controlling the transmission of signals from one or more of a plurality of mobile stations to a base station on a plurality of M multiple access channels is described. A power control information packet formed from a plurality of power con... | 10/23/2007 |
| 7283500 | Method and apparatus for allocating data streams onto a single channel A method and system that enables multiplexing a plurality of data streams onto one data stream based on data stream priorities and available transport frame combinations (TFCs) is disclosed. A mobile station has applications that produce separate data streams. Examp... | 10/16/2007 |
| 7283492 | Systems and methods for multiplexing control information onto a physical data channel Systems and methods for communicating control data for multiple physical data channels by transmitting control information for a first physical data channel on a physical control channel and combining the control information with information for a logical data chann... | 10/16/2007 |
| 7278043 | System, method, and apparatus for overload detection in real-time data processing applications A method for overload detection according to one embodiment of the invention includes a control process and a data process. In response to a timing signal, the control process sets a state of a timing indicator. Upon execution of a time-constrained operation, the da... | 10/02/2007 |
| D550219 | Portable phone | 09/04/2007 |
| 7257406 | Restrictive reuse set management A restrictive reuse set management algorithm for equal grade of service on a forward link (FL) transmission is described. While a restrictive reuse algorithm is known to improve the SINR of weak users in interference limited networks, the fairness issue associated w... | 08/14/2007 |
| 7254170 | Noise and channel estimation using low spreading factors Noise measurements are made within a fraction of a single symbol period of a longest orthogonal code symbol. A control processor identifies an unoccupied code having a spreading factor that is less than a longest spreading factor for the system. A despreader measure... | 08/07/2007 |
| 7252511 | Devices and methods for controlling relative movement between layers of an electronic device The disclosed embodiments provide devices and methods for movably connecting module layers of an electronic device to actuate one operational mode while limiting actuation of other modes. In one embodiment, an electronic device includes a first module layer movable ... | 08/07/2007 |
| 7254397 | Method and apparatus for a reverse link supplemental channel scheduling An apparatus and method for communications of scheduling information of reverse link transmissions are disclosed. A base station controller determines scheduling of a reverse link supplemental channel transmission for a mobile station in a communication system (1... | 08/07/2007 |
| 7251229 | Systems and techniques for measuring relative power Systems and techniques for a signal having a first set of channels separated in a first format, and a second set of channels separated in a second format wherein a first parameter for a first one of the channels from the first set is measured, a second parameter fro... | 07/31/2007 |
| 7251487 | Method and apparatus to track count of broadcast content recipients in a wireless telephone network A base station (110) in a wireless communications network (100) counts mobile stations (114) receiving broadcast content via multi-user channel. The base station broadcasts (608) a repeating message identifying at least one broadcast cont... | 07/31/2007 |
| 7251730 | Method and apparatus for simplified audio authentication An apparatus and method for authentication having a processor and at least one activator coupled to the processor is claimed. A signature generator is coupled to the processor and capable of generating a secure identifier. An emitter coupled to the signal generator ... | 07/31/2007 |
| 7251508 | Method for reducing power consumption in Bluetooth and CDMA modes of operation Method for reducing power consumption in Bluetooth and CDMA modes of operation is disclosed. According to a disclosed embodiment, the time for a next scheduled CDMA wakeup process to be performed by a CDMA module is established. Thereafter, if the next CDMA wakeup p... | 07/31/2007 |
| 7248572 | Distributed infrastructure for wireless data communications A mobile user terminal 402 accesses a packet data network 450 through one or more of several network access points 404–412. One or more control points 432–440 determines which network access point or points the user terminal is to acc... | 07/24/2007 |
| 7248090 | Multi-threshold MOS circuits A multi-threshold flip-flop includes a master latch, a slave latch, and at least one control switch. The master latch is composed of an input buffer formed with low threshold (LVT) transistors and a first latch circuit formed with LVT transistors. The slave latch is... | 07/24/2007 |
| 7248879 | Method and apparatus for allocating downlink resources in a multiple-input multiple-output (MIMO) communication system Techniques to schedule downlink data transmission to a number of terminals in a wireless communication system. In one method, one or more sets of terminals are formed for possible data transmission, with each set including a unique combination of one or more termina... | 07/24/2007 |
| 7248605 | Method and apparatus for high rate channel access control Access to a variable rate multiple access system is controlled based upon a current loading. The current loading level is used to determine a transmission rate set point. The transmission rate set point may include a maximum transmission rate and a transmission prob... | 07/24/2007 |
| 7245546 | Reduced area, reduced programming voltage CMOS efuse-based scannable non-volatile memory bitcell An integrated circuit chip includes a number of memory bitcells. Each bitcell includes: a latch having a sense node; a programming transistor having an efficient saturation region of operation; and a fuse connected to the programming transistor at a first terminal o... | 07/17/2007 |
| 7239622 | Modified scheduling technique for a telecommunication system Biasing and scheduling transmission of data for access point transceivers. A transmission period of the transceivers is biased in adjacent cells into a plurality of time slots such that the biasing reduces interference among adjacent cells. The transceivers are then... | 07/03/2007 |
| 7236512 | Code channel allocations in a wireless communications system Systems and techniques are disclosed relating to communications. The systems and techniques involve spread-spectrum communications using a scheduler, or similar component, configured to maintain a plurality of spreading sequence assignments and a plurality of availa... | 06/26/2007 |
| 7236418 | Reduced area, reduced programming voltage CMOS eFUSE-based scannable non-volatile memory bitcell An integrated circuit chip includes a number of memory bitcells. Each bitcell includes: a latch having a sense node; a programming transistor having an efficient saturation region of operation; and a fuse connected to the programming transistor at a first terminal o... | 06/26/2007 |
| 7230975 | Adaptive pilot filter for a wireless communication system Techniques to filter pilot symbols for a pilot in an “adaptive” manner to provide an improved estimate of the response of a communication channel. A received signal may experience different channel conditions at different times, and different multipaths may also... | 06/12/2007 |
| 7224719 | Fast acquisition of a pilot signal in a wireless communication device In a remote unit of a wireless communication system, the speed of acquisition, or reacquisition, of a pilot signal by a search engine is increased. PN space is divided into segments and a coarse search of each segment is performed using a set of “fast” search pa... | 05/29/2007 |
| 7221956 | Power control for partial channel-state information (CSI) multiple-input, multiple-output (MIMO) systems Techniques for controlling the transmit power for a number of data streams in a wireless multi-channel (e.g., MIMO) communication system. In one method, a number of received symbol streams are initially processed in accordance with a particular (e.g., CCMI, CCMI-SC,... | 05/22/2007 |
