Connectivity
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US Patent #5103459

System and Method for Generating Signal Waveforms in CDMA Cellular Telephone System

Code Division Multiple Access (CDMA) allows multiple users to share the same frequency channel at the same time.

This invention led to a 10x increase in cellular network capacity.

Inventors

  • Klein S. Gilhousen
  • Irwin M. Jacobs
  • Roberto Padovani
  • Lindsay A. Weaver, Jr.
  • Charles E. Wheatley, III
  • Andrew J. Viterbi
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US Patent #5056109

Method and Apparatus for Controlling Transmission Power in a CDMA Cellular Mobile Telephone System

In a CDMA system, increases in system capacity may be realized by controlling the transmit power of each mobile user so as to minimize interference to other users.

This invention provides a way for each phone to continuously determine the best power level at which to transmit.

Inventors

  • Klein S. Gilhousen
  • Roberto Padovani
  • Charles E. Wheatley, III
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US Patent #5101501

Method and System for Providing a Soft Handoff in a CDMA Cellular Telephone System

"Make before break": When a phone crosses the boundary between cellular towers, the call continues on both the original tower and the new tower until the handoff is successful.

This invention greatly reduces the number of dropped calls while the user is in motion.

Inventors

  • Klein S. Gilhousen
  • Roberto Padovani
  • Charles E. Wheatley, III
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US Patent #7099663

Safe Application Distribution and Execution in a Wireless Environment

This invention provides safe and secure application distribution and execution on wireless devices, by providing systems and methods that test an application to ensure it satisfies predetermined criteria associated with the environment in which it will operate.

It also determines whether an application has been modified, determines if it has permission to execute in a given environment, and removes the application should it be desirable to do so.

Inventors

  • Laurence Lundblade
  • Marc S. Phillips
  • Brian Minear
  • Yan Zhuang
  • Anand Krishnan
  • Stephen A. Sprigg
  • Mazen Chmaytelli
  • Mitchell Oliver
  • Gerald Horel
  • Karen Crossland
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US Patent #7120134

Reverse Link Channel Architecture for a Wireless Communication System

Because of uncertainty in user demands, data usage from mobiles transmitting to the network may fluctuate widely and cannot be predicted at the network.

This invention creates mechanisms to quickly assign resources to support demand and to quickly reassign resources when not needed, or to maintain system stability. Mechanisms are also provided to control the transmit power and/or data rate of the mobiles to achieve high performance and system stability.

Inventors

  • Edward G. Tiedemann, Jr.
  • Tao Chen
  • Avinash Jain
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US Patent #8405505

Power Management of Sensors within a Mobile Device

Given the increasing number of sensors within the mobile device, and the fact that certain types of sensors may draw a relatively significant amount current (e.g., certain image sensors), it is beneficial to implement techniques for managing sensor power consumption, and thus extend the operational time of the battery within a mobile device.

This invention provides a dynamic method for managing power consumption of one or a plurality of sensors within a mobile device.

Inventors

  • Ashish Nagesh Desai
  • Ricky W. Yuen
  • Leonid Sheynblat
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US Patent #6574211

Method and Apparatus for High Rate Packet Data Transmission

Cellular phone systems were originally designed for voice, which has fixed and stringent requirements around delay and grade of service.

This invention improves system capacity and data throughput by taking advantage of the different characteristics of data versus voice, enabling data to be sent at much higher rates.

Inventors

  • Roberto Padovani
  • Paul E. Bender
  • Peter J. Black
  • Matthew S. Grob
  • Jurg K. Hinderling
  • Nagabhushana T. Sindhushayana
  • Charles E. Wheatley, III
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US Patent #8203564

Efficient 2-D and 3-D Graphics Processing

Graphics processing units (GPUs) are specialized hardware units used to render two-dimensional or three-dimensional images for various applications such as video games, graphics, imaging, etc. 2-D graphics may be compared to painting, whereas 3-D graphics may be compared to sculpting.

This invention provides techniques such that each stage of the 2-D graphics pipeline may be mapped to at least one stage of the 3-D graphics pipeline, so that processing units within the GPU may be efficiently used to perform processing for both 2-D and 3-D graphics.

Inventors

  • Guofang Jiao
  • Angus M. Dorbie
  • Yun Du,Chun Yu
  • Jay C. Yun
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US Patent #5930230

High Data Rate CDMA Wireless Communication System

As digital communications progressed and demand for wireless data increased substantially, it became necessary to accommodate transmission of multiple simultaneous data types from the mobiles - for example, exchanging a data file while maintaining a video interface.

This invention provides a higher data rate, bandwidth efficient CDMA interface over which multiple types of communication can be performed.

Inventors

  • Joseph P. Odenwalder
  • Yu-Cheun Jou
  • Edward G. Tiedemann, Jr.
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US Patent #6961388

Coding Scheme for a Wireless Communication System

LTE uses OFDM, or Orthogonal Frequency Division Multiplexing, a method of encoding digital data on multiple carrier frequencies. Each of these frequencies may experience different link conditions, such as fading and multi-path effects, which are also time variant.

This invention creates a novel, flexible coding scheme for encoding data for transmission on multiple channels at different information bit rates, based on the channel conditions.

Inventors

  • Fuyun Ling
  • Nagabhushana T. Sindhushayana
  • Jay R. Walton
  • Mark Wallace
  • Ivan Fernandez
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US Patent #5874914

GPS Receiver Utilizing a Communication Link

GPS receivers normally determine their position by computing relative times of arrival of signals transmitted simultaneously by multiple satellites. The process of searching for and acquiring these signals may result in a processing time and battery consumption that is unacceptable in a mobile device. In addition, GPS operation is limited to situations in which the receiver can receive multiple satellite signals without obstruction.

This invention uses a cellular base station to improve processing speed and accuracy of positioning in challenging conditions. It also provides a method of power management to improve battery life.

Inventors

  • Norman F. Krasner
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US Patent #6473418

Orthogonal Frequency Division Multiplexing Based Spread Spectrum Multiple Access

LTE uses OFDM, or Orthogonal Frequency Division Multiplexing, a method of encoding digital data on multiple carrier frequencies.

In order to optimize this method for use in a cellular system, this invention creates a scheme to optimize the hopping pattern between frequencies for voice and data users, the frequency tone assignments, and the bandwidth reuse.

Inventors

  • Rajiv Laroia
  • Junyi Li
  • Michaela Catalina Vanderveen
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US Patent #6970580

System and Method for Maintaining a Video Image in a Wireless Communication Device

The mobile nature of a wireless communication device and the small display increase the probability that a video conferencing user will transmit a video image that is too dark, too bright, too close, too far, improperly centered, or improperly oriented in the video-image frame.

This invention recognizes characteristics in a video image and provides feedback that can be used to maintain or adjust the video image received by the device.

Inventors

  • Jonathan K. Kies
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US Patent #7623442

Signaling Method in an OFDM Multiple Access System

LTE uses OFDM, or Orthogonal Frequency Division Multiplexing, a method of encoding digital data on multiple carrier frequencies. OFDM communication systems can be inefficient due to high peak-to-average ratio of the transmitted signal, which requires a large amount of power at the base station and at the wireless device.

This invention reduces the peak-to-average ratio of the signal to be transmitted, while simultaneously taking advantage of the larger (than single carrier) communication bandwidth offered by an OFDM communication system.

Inventors

  • Rajiv Laroia
  • Junyi Li
  • Sathyadev Venkata Uppala
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US Patent #6973476

System and Method for Communicating Data via a Wireless High-Speed Link

This invention provides a low-cost wireless link that can be used for data communication between a central storage system (e.g., for music) and a mobile remote system (e.g., a vehicle), or between two mobile remote systems.

The invention also provides for automatic downloading of data and for storing such data on inexpensive, compact memory.

Inventors

  • Rex A. Naden
  • Masoud Zargari
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US Patent #6542821

GPS Receiver and Method for Processing GPS Signals

GPS receivers normally determine their position by computing relative times of arrival of signals transmitted simultaneously by multiple satellites. The process of searching for and acquiring these signals may result in a processing time and battery consumption that is unacceptable in a mobile device. In addition, GPS operation is limited to situations in which the receiver can receive multiple satellite signals without obstruction.

This invention provides two signal paths for GPS processing to improve operation during blockage conditions.

Inventors

  • Norman F. Krasner
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US Patent #7165099

Dynamically Downloading and Executing System Services on a Wireless Device

Typically, system services, including virtual machines, viewers, and plug-ins, need to be installed on a device in order to be used by applications that require them. Because a wireless device is typically constrained with regards to memory and processing, it is advantageous to only download or install some system services on an as-needed basis.

This invention provides a system and method for dynamically downloading and installing system services, such as virtual machines, viewers, plug-ins, flash-players, other executable content or data, in a device based on the needs of the application running on the device.

Inventors

  • Stephen A. Sprigg
  • Brian Minear
  • Mahesh Moorthy
  • Paul E. Jacobs
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US Patent #7295509

Signaling Method in an OFDM Multiple Access System

LTE uses OFDM, or Orthogonal Frequency Division Multiplexing, a method of encoding digital data on multiple carrier frequencies. OFDM communication systems can be inefficient due to high peak-to-average ratio of the transmitted signal, which requires a large amount of power at the base station and at the wireless device.

This invention reduces the peak-to-average ratio of the signal to be transmitted, while simultaneously taking advantage of the larger (than single carrier) communication bandwidth offered by an OFDM communication system.

Inventors

  • Rajiv Laroia
  • Junyi Li
  • Sathyadev Venkata Uppala
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US Patent #8885572

Wireless Communication Methods and Apparatus Using Beacon Signals

In a wireless ad hoc network, a terminal has to combat certain challenges to set up communication with a peer terminal. One challenge is to make the terminals in the vicinity synchronized to a common timing and/or frequency reference so that they may discover one another.

This invention uses a beacon signal from the base station to convey information to facilitate peer-to-peer communication.

Inventors

  • Rajiv Laroia
  • Frank A. Lane
  • Junyi Li
  • Tom Richardson
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US Patent #6941133

Dynamic Loading and Creation of Functional Objects in a Wireless Device

With the increasing popularity of wireless telephones, engineers at Qualcomm envisioned that the next generation of wireless phones would offer customers the ability to self-download new programs from remote servers via the wireless link, and self install these programs for use on that phone.

This invention provides a method that flexibly handles a wide variety of both static (built-in) objects and dynamic (user-downloaded) objects, reducing the complexity of circuitry required to process and activate static and dynamic objects.

Inventors

  • Paul E. Jacobs
  • Stephen A. Sprigg
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US Patent #8223230

Systems, Methods, and Apparatus for Camera Tuning and Systems, Methods, and Apparatus for Reference Pattern Generation

In order to produce commercially acceptable image quality from a cellphone camera or other inexpensive digital camera, it may be desirable to perform a filtering operation (also called a “post-processing procedure”) on the captured image.

This invention addresses the problem that camera sensors in cell phones are subject to a variety of difficulties that are not present in a dedicated digital camera, such as physical limitations of the image sensor, and interference from illumination. This invention takes advantage of the processing power on the phone to tune and correct for these issues.

Inventors

  • Victor H. Chan
  • Narayana S. Ravirala
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US Patent #6366856

Method and Apparatus for Orienting a Map Display in a Mobile or Portable Device

The use of computer mapping technology has been growing dramatically in recent years. Traditionally, the orientation of a map placed north at the top. The user was left to abstract this orientation to the physical world.

This invention provides a method for orienting the map display relative to the direction of the device, using sensors and/or the GPS receiver.

Inventors

  • Paul Johnson
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US Patent #8503186

System-in Packages

Semiconductor wafers are processed to produce integrated circuit (IC) chips having ever-increasing device density and shrinking feature geometries. Multiple conductive and insulating layers are required to enable the interconnection and isolation of the large number of semiconductor devices in different layers. Such large-scale integration results in an increasing number of electrical connections between various layers and semiconductor devices. It also leads to an increasing number of leads to the resultant IC chip.

This invention provides techniques in IC packaging that enable a high throughput and low cost approach while addressing significant challenges in manufacturability and structural reliability.

Inventors

  • Mou-Shiung Lin
  • Jin-Yuan Lee
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US Patent #6725060

Method and Apparatus for Conserving Power in an Integrated Electronic Device that Includes a PDA and a Wireless Telephone

Today's smart devices combine user applications with wireless telephony.

This invention relates to a method for reducing power consumption in a multi-function integrated device.

Inventors

  • Murtuza T. Chhatriwala
  • Clarence C. Wong
  • Ronald J. Menelli
  • Christine Burke
  • Stephen A. Sprigg
  • Marc A. Weiss
  • Jason B. Kenagy
  • Jeffrey A. Pritchard
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US Patent #6886017

System and Method for Managing Distribution of Content to a Device

Content provided to a device may take a variety of different forms, for example data files for use with particular applications installed on the device, or application programs themselves.

This invention provides a method of managing distribution of content to a device, which may only make periodic connections to a network, and when not connected to a network will still need to have content stored locally for its own use.

Inventors

  • Bruce Jackson
  • Nigel Robert Brookes
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US Patent #7876265

Methods and Systems for Providing Enhanced Position Location in Wireless Communications

Presence detection and location based services require accurate and reliable position detection.

This invention provides improved position location using access points to transmit a reference signal to access terminals. The access terminals may use the received reference transmission to perform a position-location measurement, and report back the measured information, thus establishing location relative to the access point.

Inventors

  • Peter John Black
  • Matthew S. Grob
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US Patent #8601876

Ultrasonic Fingerprint Scanning Using a Plane Wave

A biometric authentication solution that uses ultrasonic sound waves to create a highly detailed 3D representation of your fingerprint.

By capturing three-dimensional details, Sense ID creates a highly detailed surface map of your fingerprint, including additional characteristics such as sweat pores and ridge flow characteristics. The level of detail enables a higher level of security.

Inventors

  • John K. Schneider
  • Jack C. Kitchens
  • James T. Baker
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US Patent #20140015329 (pending)

Systems, Methods, and Apparatus for Detection of Metal Objects in a Predetermined Space

Systems, methods and apparatus for a car to detect foreign objects, and for use in an automotive wireless charging system.

There is a significant advantage to not need to remember to plug your electric car in every day, as it would begin charging as soon as you parked it in your garage over the charging pad.

Inventors

  • Hanspeter Widmer
  • Markus Bittner
  • Lukas Sieber
  • Marcel Fischer
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US Patent #7438225

Biometric Authentication Device and Method

A wirelessly connected biometric patch that automatically and electronically verifies the identity of a hospital patient.

An adhesive patch with sensors and a connection to a processor (computer) that verifies that the static biometrics that it is reading is the same as the static biometrics of the person the patch was originally applied to. If the biometrics measured match and the patch is still attached, then you have an electronic verification that is accurate, non-evasive, and reliable.

Inventors

  • John K. Schneider
  • James T. Baker
  • Fred W. Kiefer
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US Patent #9292832

Collaborative Intelligence and Decision-Making in an IoT Device Group

A collaborative intelligence and decision-making process for a group of Internet of Things (IoT) devices working together.

One IOE device's decision may impact other IOE devices, so before making a decision (like going to hibernation mode, etc.), IOE devices can use collaboration mechanisms and achieve distributed intelligence in the group.

Inventors

  • Amit Goel
  • Mohammed Ataur Rahman Shuman
  • Binita Gupta
  • Ashutosh Aggarwal
  • Sandeep Sharma
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