Searching:
Search by keyword, patent number, inventor, assignee, city or state:
| Patent # | Description |
|---|---|
| US-5,790,675 |
Cryptographic communication process A novel asymmetrical cryptographic schema which can be used for enciphering, signature and authentication. The schema is based on low degree public polynomial... |
| US-5,790,674 |
System and method of providing system integrity and positive audit
capabilities to a positive identification system The present invention is a system and method of providing system integrity and positive audit capabilities to a positive identification system. The use of access... |
| US-5,790,673 |
Active acoustical controlled enclosure A system and method for using active algorithmically controlled sensing (1a, 1b) and speaker (2a, 2b) for controlling noise from a distributed noise source (5)... |
| US-5,790,672 |
In ear hearing aid An in-ear hearing aid device including a cup fitted into the auditory canal, and having an earphone, an amplifier, and a microphone arranged therein, the device... |
| US-5,790,671 |
Method for automatically adjusting audio response for improved
intelligibility Intelligibility of received speech in a radio receiver is improved by automatically adjusting audio response in accordance with ambient noise levels. When high... |
| US-5,790,670 |
Apparatus and method for securing electronic circuitry An apparatus for protecting the confidentiality and security of sensitive data which has been encrypted as it is being processed in data communications systems.... |
| US-5,790,669 |
Lightweight non-repudiation system and method A system and method is disclosed that provides lightweight non-repudiability for networked computer systems. Each party to a two-party communication maintains... |
| US-5,790,668 |
Method and apparatus for securely handling data in a database of
biometrics and associated data A person wanting an entitlement, such as welfare, typically inputs his fingerprint to a database. On a match with a fingerprint already in the database, a... |
| US-5,790,667 |
Personal authentication method A user i calculates authentication application information involving a random-number parameter and transmits it to a sales company A. At the sales company A, the... |
| US-5,790,666 |
Decryptor A decryptor includes a descrambler for descrambling the scrambled signals using a PN signal, a PN generator which shifts the state successively from its initial... |
| US-5,790,665 |
Anonymous information retrieval system (ARS) An information retrieval system in which data is retrieved anonymously by a user with the assistance of one or more trusted agents. |
| US-5,790,664 |
Automated system for management of licensed software Methods and apparatuses are disclosed for providing a system for automatically tracking use of a software and also for determining whether the software is... |
| US-5,790,663 |
Method and apparatus for software access to a microprocessor serial
number A method and apparatus for software to access a microprocessor serial number. Provision of the serial number allows the manufacturer better control over its... |
| US-5,790,662 |
Data carrier and write/read device therefor A data carrier with an electronic circuit for storing and processing data is provided with an information strip with optically readable markings, and preferably... |
| US-5,790,661 |
Mount plate for the cradle of a telephone A mount plate for the cradle of a telephone has a forward and upwardly inclined projecting boss with a concave surface through which a traverse slot is provided.... |
| US-5,790,660 |
Shunted modular jack A shunted modular jack is provided with a shunting module mounted against a rear face of the modular jack. The shunting module comprises a housing and shunting... |
| US-5,790,659 |
Subscriber identity module (SIM) card holder A SIM card holder for a cellular telephone having enclosing front and rear covers and a printed circuit board, includes a base mounted in the cover, the base... |
| US-5,790,658 |
High performance echo canceller for high speed modem An architecture for echo cancellation in communication networks is provided that uses a multi-stage adaptation algorithm which operates on echo cancellation... |
| US-5,790,657 |
Echo suppressor capable of suppressing an echo resulting from acoustic
coupling without spoiling a natural... In an echo suppressor for suppressing an echo resulting from acoustic coupling in a telephone apparatus, an attenuator attenuates a transmission signal level... |
| US-5,790,656 |
Data access arrangement with telephone interface A data access arrangement (DAA) interface for alternately coupling a telephone set to a modem for operation in conjunction with and independent of the central... |
| US-5,790,654 |
Digitally controlled ring signal generator A space and power efficient digitally controlled, all solid state, DC to AC converter powered by low voltage DC, typically found in logic circuits, that generate... |
| US-5,790,653 |
Line-powered detection of call progress tones The invention provides a method for detecting a call progress tone on a pair of telephone conductors (the telephone line). The level of energy stored in an... |
| US-5,790,652 |
Telephone station equipment employing rewriteable display keys Telephone station equipment consisting of a phone device interconnected with a personal computer. The phone device includes a conventional telephone handset and... |
| US-5,790,651 |
Automatic line distribution equipment and connection-pin inserting-and
extracting apparatus Automatic distribution equipment for connecting and disconnecting lines includes a frame body, a plurality of matrix-switch-board units arranged in the frame... |
| US-5,790,650 |
Telephone call center management system which supports multi-user and
separate private applications A telephone call center management system capable of simultaneously operating at least two separate telephony applications. A first group of agents is assigned... |
| US-5,790,649 |
Call transfer system and electronic mail transfer system An electronic mail transfer system including an information processing station and a telephone exchange system. The information processing system accommodates a... |
| US-5,790,648 |
Dynamically negotiated application program interface method A method of enhancing communication among a plurality of communicating devices in which an interface comprising a list of features for enhancing the ability of... |
| US-5,790,647 |
Subscriber feature services in a telecommunications system Special subscriber features available to a telecommunications subscriber are selected for a particular B-number preassigned to a particular subscriber and stored... |
| US-5,790,646 |
Remotely accessing special services in telephone exchange An incoming call service method and apparatus for an exchange, having a character conversion table and a specific function table, includes: receiving and... |
| US-5,790,645 |
Automatic design of fraud detection systems A technique for automatically designing a fraud detection system using a series of machine learning methods. Data mining and constructive induction are combined... |
| US-5,790,644 |
Computer-to-telephone interface A portable computer, such as a laptop, notebook, or palmtop computer, comprises control routines for providing a sophisticated touch-tone dialer operable through... |
| US-5,790,643 |
Pricing method for telecommunication system A telephone charging system prices calls made by customers in a telecommunications network. The system includes a local exchange which provides a call record for... |
| US-5,790,642 |
Competitively bidding service centers A plurality of service centers, disbursed throughout a telecommunications network such as the public switched telephone system (PSTN), competitively bid for the... |
| US-5,790,641 |
System and method for improving facsimile delay tolerances A system and method for extending the time period at which a response signal can be received before a time-out occurs without altering the length of the time-out... |
| US-5,790,640 |
Apparatus and method for storing and transmitting data between a
computer, a facsimile machine and a telephone... A system for storing and transmitting data comprises a processor, a memory, an output device, a facsimile-modem unit, and a line interface unit. The line... |
| US-5,790,639 |
Method and apparatus for automatically sending and receiving modifiable
action reports via e-mail A method and apparatus for assisting delivery of fax documents over a value-added network, such as a store-and-forward network. If an initial delivery attempt is... |
| US-5,790,638 |
Signaling in call transfer calling operations to control the initiation
of secondary number telephone service... Responsive to an incoming call made to a primary telephone number subscribing to a call transfer calling service feature, a first switching node queries a data... |
| US-5,790,637 |
Extended voice messaging The disclosed voice-based communications system and method provides an architecture for communication among team-organized users. After a single, voice accessed... |
| US-5,790,636 |
Telephone travel card system under the control of its customers A telephone system for travel card users where the users may program a switch processor so that it completes, re-routes, or refuses to complete calls as... |
| US-5,790,635 |
System and method for automatic monitoring of active telephone calls in
a telephonic switch A monitoring system and method for substantially automatically monitoring active incoming telephone calls being routed through a telephone switch, such as an... |
| US-5,790,634 |
Combination system for proactively and reactively maintaining telephone
network facilities in a public switched... In an administration system for a public switched telephone network, a combination proactive and reactive maintenance system analyzes the working status of... |
| US-5,790,633 |
System for proactively maintaining telephone network facilities in a
public switched telephone network In an administration system for a public switched telephone network, a service analysis system is provided for proactively analyzing the working status of... |
| US-5,790,632 |
Method and apparatus for echo canceling accounting for companding
induced quantization error An improved method and apparatus for canceling echo is disclosed. The echo canceller of the present invention compensates for the existence of quantization error... |
| US-5,790,631 |
Wireless drop A wireless transceiver connects to a telephone line network terminal, in place of a disabled subscriber drop cable. A second wireless transceiver connects to... |
| US-5,790,630 |
Radiation window and radiation system using the same A radiation window includes a radiation transmitting window material, a supporting frame for gas-tightly supporting an outer periphery of the radiation... |
| US-5,790,629 |
Apparatus for making x-ray images An apparatus for making X-ray images includes an X-ray source which is controlled by an X-ray source control. A luminescent screen provides a visible image based... |
| US-5,790,628 |
X-ray spectroscope The following arrangement is adopted to achieve an X-ray spectroscope capable of simultaneously spectrally analyzing, with a single spectral scanning, X-rays... |
| US-5,790,627 |
Method and apparatus for observing a specimen using an X-ray microscope X-ray microscopy is used to observe a specimen by labelling the specimen with a molecule having a double bond, such as, for example, N-succinimidyl-4-nitrophenyl... |
| US-5,790,626 |
Bi-directional linear feedback shift register A unified bi-directional LFSR is fabricated from latches having dual (Forward and Reverse) inputs. Each such latch accepts its inputs upon receipt of a clock... |
| US-5,790,625 |
Mechanism for enabling an array of numerous large high speed counters A large number of frequent events may be accurately counted by employing a shift register. The values of several bit positions within the shift register are... |
Copyright 2008−2012 Patents.com
