Patents, Standards and Bibliography

Patents

The following patents pertaining to our project were collected from the United States Patent and Trademark Office searchable on-line database using the keywords Wireless and Modem.

• US Patent 5,974,085 - Wireless modem and method therefor for routing data to an application or to storage.
    Abstract: An application registry is programmed into a wireless modem and includes routing information for routing data, based upon data type, to an application or to storage. Thereafter, the wireless modem receives the data and determines the data type. The wireless modem then routes the data in accordance with the routing information for the data type and, when the routing information indicates the application is located in an external device, further in accordance with an accessibility status of the external device.


• US Patent 5,737,708 - Method for handling unrecognizable commands in a wireless environment.
    Abstract: The process of the present invention enables a wireless modem to accept from a computer commands that it does not recognize. The computer sends a command to the wireless modem to forward all commands to modems at a base station. The base station modems then interpret the commands and act accordingly. When the computer no longer wishes the wireless modem to ignore commands it does not recognize, the computer sends another command to the modem instructing it to either flag unknown commands as errors or to ignore them.


• US Patent 5,864,580 - Miniature wireless modem.
    Abstract: A wireless modem employs a radio frequency (RF) transponder system components to remotely access the memory of an electrical or electro-mechanical device by providing an exciter/reader/writer (ERW) circuit free of electrical contact with the electrical or electro-mechanical device and a transponder including a ransmit/receive antenna, a reading circuit, a programming circuit, and a transponder memory. The transponder memory is directly connected to the device memory. The ERW circuit initially generates an RF excitation signal powering the transponder. In response to the RF excitation signal, the transponder generates a RF response signal using the reading circuit that is transmitted back to the EWR circuit. The RF response signal includes data from the device memory. The RF response signal is received by the ERW circuit, which in turn generates an RF write signal that is transmitted to the transponder. The RF write signal powers the transponder and programs the device memory using the programming circuit of the transponder.


• US Patent 5,694,420 - Wireless modem with low power consumption and high reliability in reception.
    Abstract: The object of the present invention is to provide a wireless modem that performs detection with high reliability even in the case of carrier detection by analogue level, and whereby a large decrease in power consumption in standby mode can be obtained. Control unit 80 controls synthesizer 100 during transmission mode so that it transmits from antenna 200 one or two or more unmodulated carriers that have not been subjected to spectrum dispersion, at the head of the transmission preamble signal; in addition it performs on/off control of the output transmission clock pulse and reception clock pulse of clock pulse generating control unit 90, and changeover control of transmission/reception switch 53. Control unit 80 outputs a carrier detection enable signal to level comparator 75. Controlling its operation. In standby mode, control unit 80 controls synthesizer 100 and IF unit 40 such that the received unmodulated carrier can be detected by level detector 60 and level comparator 75.


• US Patent 5,900,825 - System and method for communicating location and direction specific information to a vehicle.
    Abstract: A system and method for providing information to the operator of a land, water or airborne vehicle includes a wide-area message transmitter for transmitting messages to the vehicle and a vehicle-based receiver system. Each message includes identification information specifying a location (including a direction of travel) for which the message is intended. The receiver system on the vehicle computes its position and direction of travel and compares the position of the vehicle to the intended location indicated by each message. When a match is found, the receiver system provides the matching message to the operator of the vehicle. The messages are digitized voice messages. In a preferred embodiment, the vehicle-based receiver system calculates its position and direction of travel using either GPS or signals received from a local transmitter site.

The following patents pertaining to our project were collected from the IBM Patent Search searchable on-line database using the keyword Telerobotics.

• US Patent 5,231,693 - Telerobotics.
    Abstract: A telerobot system including an operator interface for developing and controlling complex tasks for execution on a remote robot manipulator by developing sequences of parameterized tasks primitives for execution and testing on a local simulator. The task sequences, and their parameterization, may be interactively modified by teleoperation and/or editing during sequence development and task execution. Adjustable time delays are provided for execution simulation including delays expected to occur between task command and execution at the remote robot manipulator.

Standards

Wireless Communication Standards

The following standards were retrieved from the NSSN using the keywords Wireless and Communication.

• Radio Equipment and Systems (RES); Wideband Transmission Systems; Technical Characteristics and Test Conditions for Data Transmission Equipment Operating in the 2,4 GHz ISM Band and Using Spread Spectrum Modulation Techniques Second Edition - Spread spectrum wireless communication will be the method we will use for wireless communication with our robots.
• Limits and Methods of Measurement of Electronic Disturbance Characteristics of Industrial, Scientific and Medical (ISM) Radiofrequency Equipment IEC CISPER 11: 1992/Amd 1: 1996/Amd 2: 1996; Amendment 1 May 1997 - A standard for measuring RF disturbances caused by RF devices.

Internet Standards

Most internet standards are documented in Internet RFCs (Request For Comments). RFCs are indexed at Ohio State University. Java is a trademark of Sun Computer Systems.

• STD0005 - Internet Protocol. J. Postel. September 1981.
    (Also RFC0791, RFC0950, RFC0919, RFC0922, RFC792, RFC1112 )
  Abstract: This document specifies the DoD Standard Internet Protocol. This document is based on six earlier editions of the ARPA Internet Protocol Specification, and the present text draws heavily from them. There have been many contributors to this work both in terms of concepts and in terms of text. This edition revises aspects of addressing, error handling, option codes, and the security, precedence, compartments, and handling restriction features of the internet protocol.
• STD0007 - Transmission Control Protocol. J. Postel. September 1981.
    (Also RFC0793 )
  Abstract: This document describes the DoD Standard Transmission Control Protocol (TCP). There have been nine earlier editions of the ARPA TCP specification on which this standard is based, and the present text draws heavily from them. There have been many contributors to this work both in terms of concepts and in terms of text. This edition clarifies several details and removes the end-of-letter buffer-size adjustments, and redescribes the letter mechanism as a push function.

Bibliography

The folowing are a few of the books and references that are related to our project.

• CORE Web Programming by Marty Hall ©1998 Prentice Hall
    HTML, Java, CGI, Java Script Reference
• Learning Pearl by Randal Schwartz and Tom Christiansen ©1997 O'Riley and Associates
    Perl Language Reference