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3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8175567 | Method and apparatus for searching for signals in a wireless communication system Techniques to search for signals while in an out-of-service state are described. In an aspect, a network entity may collect information for wireless devices within a designated area, determine at least one search parameter (e.g., a scan rate) based on the collected ... | 05/08/2012 |
| 8103238 | Energy-efficient operation of a communication network A method for wireless communication between a base station and a number of devices is provided, with the devices in each case having a limited energy supply. To establish a connection, the base station sends a sequence of synchronization signals on at least one of i... | 01/24/2012 |
| 8073420 | Sensor net management method There is provided a sensor node management method in which a user is unconscious of a service break even when a sensor mode has failed among a plurality of sensor nodes assuming intermittent operation. Moreover, it is possible to provide a flexible sensor node manag... | 12/06/2011 |
| 8060054 | Method and system for reactive power-saving Disclosed herein is a method and system for power management in a subscriber station. The method involves (a) during a communication session between a subscriber station and an access network, determining a packet inter-arrival time for data received from the access... | 11/15/2011 |
| 8023924 | Method for reducing power consumption in a multi-user digital communication system and mobile station employing the method A method for reducing power consumption in a multi-user digital communication system and mobile station employing the method adjusts receive and transmit mode durations of the mobile device using downlink and uplink allocations from a base station of the system, as ... | 09/20/2011 |
| 7904052 | Sensor net management method There is provided a sensor node management method in which a user is unconscious of a service break even when a sensor node has failed among a plurality of sensor nodes assuming intermittent operation. Moreover, it is possible to provide a flexible sensor node manag... | 03/08/2011 |
| 7844244 | Methods, apparatuses, and computer program products for providing dynamic assignment of slot cycle index for network nodes An apparatus for providing dynamic assignment of slot cycle index includes a processing element. The processing element may be configured to send a registration message to a server for registering a network node to a service associated with the server, to receive a ... | 11/30/2010 |
| 7826818 | Network supporting roaming, sleeping terminals Improved apparatus for a radio communication system having a multiplicity of mobile transceiver units selectively in communication with a plurality of base transceiver units which, in turn, communicate with one or more host computers for storage and manipulation of ... | 11/02/2010 |
| 7769362 | System and method for power management The present invention provides a method for managing power of devices on a network. The method comprises: transmitting a first weighted value and a first anchor status of a first device on the network to a second device on the network, wherein the second device is a... | 08/03/2010 |
| 7756506 | Method and system for discontinuous reception de-synchronization detection and recovery A method and apparatus for recovery from discontinuous reception desynchronization, the method having the steps of: determining a most recent time that an explicit message indicating a change from an old discontinuous reception period to a new discontinuous receptio... | 07/13/2010 |
| 7706772 | Power saving system and method for mobile wireless network device using historical periods of signal intermittence and reliability A system and method for managing battery energy usage by a mobile wireless network which detects threshold conditions for network signal found and lost; records historical events of signal found and lost with operational criteria associated with operational conditio... | 04/27/2010 |
| 7630702 | Method of supporting sleep mode in broadband wireless access system The primitives between an upper management layer and the MAC layer within a mobile station and a base station are defined in order to specify and clarify the operations within the protocol stack layers in a broadband wireless access system to allow a mobile station ... | 12/08/2009 |
| 7574192 | Method for operating a communication system and objects for such a system Method and arrangement for operating a communication system for communication between a central station (10) and one or a plurality or remote objects (20 to 25), as well as such an object, wherein at least one object is operated in a battery sav... | 08/11/2009 |
| 7558557 | Low-power messaging in a network supporting roaming terminals A data collection network supporting roaming terminals which may enter and exit a sleep mode to conserve power. A plurality of base stations each periodically transmit pending message indications to those roaming data collection terminals within range. Instead of re... | 07/07/2009 |
| 7536167 | Network supporting roaming, sleeping terminals Improved apparatus for a radio communication system having a multiplicity of mobile transceiver units selectively in communication with a plurality of base transceiver units which, in turn, communicate with one or more host computers for storage and manipulation of ... | 05/19/2009 |
| 7505753 | Distribution of tasks over time in a mobile terminal The invention relates to a method, a device and a process for distributing various tasks performed by a mobile terminal (101) over time. The idea of the invention is to increase talk and standby times of said terminal (101) by executing as many power c... | 03/17/2009 |
| 7450926 | Apparatus and method for controlling sleep mode in wireless access communication system An apparatus and method for controlling a sleep mode in a wireless access communication system. The apparatus determines a predetermined number of groups for grouping at least one subscriber terminal according to type information of a paging interval equal to the su... | 11/11/2008 |
| 7437136 | System and method for reducing noise in a recording receiver An apparatus and method is related to wireless communication devices with a reduced-noise recording receiver. The recording receiver receives a transmitted signal, converts the received signal to a digital base-band signal and stores the digitized base-band signal i... | 10/14/2008 |
| 7415624 | System and method for saving power in a wireless network by reducing power to a wireless station for a time interval if a received packet fails an integrity check A method, an apparatus and a carrier medium storing instructions to implement the method. The method is in a first wireless station of a wireless network, and includes wirelessly receiving a signal corresponding to a packet wirelessly transmitted by a second wireles... | 08/19/2008 |
| 7408506 | Method and apparatus for conserving power on a mobile device through motion awareness An apparatus and method for conserving power on a mobile device through motion awareness. The method includes a motion model that receives location information from one or more receivers and an accelerometer. The motion model determines whether the mobile device is ... | 08/05/2008 |
| 7403507 | System and method for recovering system time in direct sequence spread spectrum communications A sleep control system and method are provided that permit a reference clock and the direct sequence spread spectrum (DSSS) modem in a mobile station receiver to be turned off and turned back on at arbitrary points in time while still maintaining accurate base stati... | 07/22/2008 |
| 7346330 | Software-defined radio apparatus To simplify the configuration of functional modules in a software-defined radio apparatus, and facilitate the development of software. The functional modules have input and output terminals of a common configuration. Distributed timing control is performed so that t... | 03/18/2008 |
| 7330736 | Methods and apparatus for reduced energy communication in an ad hoc network The invention relates to communications devices for reduced energy communications in an ad hoc network. The communication device includes a first low powered transceiver for initiating communications with other communications devices and a second transceiver for tra... | 02/12/2008 |
| RE40032 | Wireless data communication system having power saving function A wireless data communication system is operable in a power saving mode wherein stations are synchronized to be in an awake state to receive synchronizing messages (TIM, PSYNC) and traffic indicator information and are changed to a doze state if they are not to rece... | 01/22/2008 |
| 7308245 | Mobile station Provided is a mobile station that a user is able to use without inconvenience, and that is able to realize power consumption saving. The mobile station: records a speech-communication history including information identifying a time at which speech communication occ... | 12/11/2007 |
| 7301987 | Background processing and searching for a communication channel A method including searching for a communication channel by activating a receiver having a radio frequency (RF) module and a baseband module for storing a portion of received signals within a first time period, de-activating the RF module of the receiver, and backgr... | 11/27/2007 |
| 7298321 | Satellite positioning system receivers and methods A satellite positioning system receiver programmed to operate synchronously with an expected time of arrival of information from at least one satellite of a satellite positioning system, and to receive the information from the at least one satellite when the receive... | 11/20/2007 |
| 7295827 | Mobile station dynamic power saving control A mobile station in an 802.11 wireless network dynamically adjusts a number of 802.11 beacon intervals to sleep based on a power savings level and a required wake-up time to receive packets from an access point. The power savings level is based on data traffic activ... | 11/13/2007 |
| 7283801 | Circuit arrangement for phase locked loop, and phase locked loop based method to be used in cellular network terminals The invention relates to a circuit arrangement (4) for a PLL to be used in a terminal (50) of a time division cellular network. In a PLL according to the invention, the control voltage (32a) to a VCO (33) in the PLL is kept at a de... | 10/16/2007 |
| 7231198 | Context-dependent operation of computer devices A computing device such as a notebook computer comprises a processor and one or more power sources. A plurality of operational states are defined, each with a set of device operation choices for settings (such as power management or configuration) appropriate to tha... | 06/12/2007 |
| 7212843 | Current reduction in a communication device A method for reducing current drain in a communication device includes a first step of developing a history of readings of received signal strengths (RSS) of a neighboring broadcast control channel (BCCH). A next step includes monitoring a RSS of the neighboring cha... | 05/01/2007 |
| 7200379 | Low-power mode clock management for wireless communication devices A power management scheme for a wireless communications device substantially implemented on a single CMOS integrated circuit is described. The present invention provides a method and apparatus for generating first and second clock signals for a wireless communicatio... | 04/03/2007 |
| 7197342 | Radio telecommunications network, user equipment and method of operation Battery operated user equipment is disclosed for use in a radio telecommunications network, including means for monitoring the state of charge of the battery and means for communicating state of charge data to a base station during call set up. The battery da... | 03/27/2007 |
| 7190979 | Battery economizing in a communications system In communications systems such as telemetry systems in which a receiver (34) is periodically energised to receive transmissions from a central station, the receiver includes a power control means (12) for controlling the energisation of the receiver, a... | 03/13/2007 |
| 7184743 | Method and apparatus for allocating uplink resources in a multiple-input multiple-output (MIMO) communication system Techniques to schedule uplink data transmission for a number of terminals in a wireless communication system. In one method, a number of sets of terminals are formed for possible data transmission, with each set including a unique combination of terminals and corres... | 02/27/2007 |
| 7181188 | Method and apparatus for entering a low power mode A method and apparatus for entering a low power mode is provided. In one embodiment, data processing system (10) has power control circuitry (52) which may be used to control power usage in data processing system (10). Power mode select circuitr... | 02/20/2007 |
| 7181190 | Method for maintaining wireless network response time while saving wireless adapter power To reduce the power consumption of a wireless communication hardware device, power conservation scheduling algorithms can be implemented. Reoccurring events, including DTIM intervals and listen intervals can be scheduled as awake times. Similarly expected response i... | 02/20/2007 |
| 7176587 | Sensor adapted for connection to a bus and method for supplying power to a sensor connected to a bus A sensor adapted for connection to a bus and a method for supplying power to a sensor connected to a bus are described, which serve to minimize the power consumption of a sensor connected to the bus. To this end, power for a sensor is stored in an energy storage dev... | 02/13/2007 |
| 7171186 | Cellular mobile phone with user-data backup and available time display functionality Data which indicates remaining capacity of a battery in terms of the terminal voltage of the battery is updated by a control unit when necessary, whereby available capacity of the battery is accurately calculated regardless of the extent of deterioration of the batt... | 01/30/2007 |
| 7167732 | Method for enhanced power saving on DCF based wireless networks A method for enhanced power saving on DCF based wireless networks is disclosed. The method divides a beacon transmitting section in an Announcement Traffic Indication Message (hereinafter, referred to as “ATIM”) window period defined by IEEE standard 802.11 acco... | 01/23/2007 |
