"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 6859534 | Digital anti-counterfeiting software method and apparatus This invention relates generally to a method and apparatus, as implemented by a software program on a computer system, for digitally producing counterfeit-deterring scrambled or coded indicia images, typically in a printed form. This method and system are capable of... | 02/22/2005 |
| 6408076 | Digital video broadcasting In order to descramble sections of scrambled data interleaved with sections of unscrambled data in a transport stream of broadcast video data, while leaving the sections with the original timing relationship in the transport stream, a common data flow pat... | 06/18/2002 |
| 6408388 | Personal date/time notary device A personal data/time notary device is embodied in a token device such as a "smart card". The portable notary device includes an input/output (I/O) port, which is coupled to a single integrated circuit chip. The I/O port may be coupled to a conventional sm... | 06/18/2002 |
| 6396927 | Variable density verification A counterfeit-resistant document comprises a contrasting layer and a dynamic camouflaging layer. The contrasting layer is highly contrastive and includes a latent message that can be reproduced over a broad range of copy device control settings. The dynam... | 05/28/2002 |
| 6385710 | Multiple-mode external cache subsystem In accordance with the present invention, a cache memory subsystem includes a processor, a cache control unit and a SRAM serving as the cache memory. The SRAM is a synchronous SRAM. The cache control unit provides appropriately timed control signals to th... | 05/07/2002 |
| 6374122 | Method and apparatus for supporting expanded electronic serial number (EESN) format A 32 bit digital "amended electronic serial number" (AESN) is generated from a 56 bit "extended electronic serial number" (EESN). The AESN distinguishes each subscriber unit within a wireless system from each other subscriber unit. Two distinct methods ar... | 04/16/2002 |
| 6363478 | Security mechanisms in a web server A session processing module for a server is adapted to communicate across the Internet with a plurality of clients. The processing module runs within a servlet and allocates a session identifier in response to a first input stream of a session between a c... | 03/26/2002 |
| 6357007 | System for detecting tamper events and capturing the time of their occurrence A system for monitoring tamper events in a computer system is disclosed. The computer system is on a network. The system comprises a tamper real time clock (RTC) means which receives at least one tamper event signal from the computer system. The tamper RT... | 03/12/2002 |
| 6345099 | System and method for copy protecting computer graphics Copy protection is provided for the now-unprotected computer monitor port of a computer 100 in two ways: (i) delaying synchronizing signals by a time variable amount and (ii) generating pulses during non-active video. Delay of the synchronizing signal is ... | 02/05/2002 |
| 6335972 | Framework-based cryptographic key recovery system A Secure Key Management Framework (SKMF) defines an infrastructure for a complete set of cryptographic services augmented with key recovery enablement. There are three major layers--the application layer invokes the SKMF layer, while the SKMF layer invoke... | 01/01/2002 |
| 6317832 | Secure multiple application card system and process A secure multiple application card system and process is provided having secure loading and deleting capability by use of a Certification Authority and Personalization Bureau. The certification authority maintains the security of the system by requiring I... | 11/13/2001 |
| 6314519 | Secure messaging system overlay for a selective call signaling system A secure messaging system (900) generates a secure financial transaction message. A wireless selective call signaling system controller (102) receives the secure financial transaction message as a selective call message request including a destination ide... | 11/06/2001 |
| 6314521 | Secure configuration of a digital certificate for a printer or other network device The system, method, and program of this invention provides a secure configuration of a digital certificate for a printer. The printer has a unique encryption key stored in it at manufacturing time. This key is also recorded in a database, securely control... | 11/06/2001 |
| 6311269 | Trusted services broker for web page fine-grained security labeling Arbitrarily fine-grained limitation of access to information stored in a resource of a data processor network is provided in a manner compatible with existing network browsers by mapping user identity and credentials with randomly assigned security cookie... | 10/30/2001 |
| 6311170 | Method and apparatus for making payments and delivering payment information When characterized as an improved method of making payments from a plurality of payor entities to a plurality of payee entities through a service provider, a number of method steps which will now be described. First, authorization is obtained from a plura... | 10/30/2001 |
| 6310957 | Method and apparatus for interdicting cable television channels Apparatus for interdicting television channels of a cable television system comprises a plurality of oscillators dedicated to jamming the audio portion of television channels to be interdicted, and a further plurality of different oscillators dedicated to... | 10/30/2001 |
| 6304658 | Leak-resistant cryptographic method and apparatus The present invention provides a method and apparatus for securing cryptographic devices against attacks involving external monitoring and analysis. A "self-healing" property is introduced, enabling security to be continually re-established following part... | 10/16/2001 |
| 6304974 | Method and apparatus for managing trusted certificates The present invention provides a system for managing trusted certificates for authenticating communications for clients belonging to an enterprise. The system assembles a list of trusted certificates containing public keys for authenticating communication... | 10/16/2001 |
| 6301661 | Enhanced security for applications employing downloadable executable content Method and computer network for enhanced security for applications using downloadable executable content is described. More particularly, a client is operatively coupled to an authentication server and a remote host through a gateway. In an initial login ... | 10/09/2001 |
| 6301363 | Security document including subtle image and system and method for viewing the same A system for viewing a subtle image on a security document is provided including a security document, a document viewer, and a document receiving station. The security document comprises a subtle image and a security image formed on a first face of the se... | 10/09/2001 |
| 6298441 | Secure document access system A method for downloading a document via a communications medium operatively associated with a communications interface, the method including receiving the document from the communications medium, placing an information storage smart card in removable oper... | 10/02/2001 |
| 6298138 | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk Disclosed is an optical disk barcode forming method wherein, as information to be barcoded, position information for piracy prevention, which is a form of ID, is coded as a barcode and is recorded by laser trimming on a reflective film in a PCA area of an... | 10/02/2001 |
| 6298137 | Ring-based public key cryptosystem method A method of communicating information between users of a communications system includes the following steps: generating a ring R, ideals P and Q in R, a set of coset representatives CQ for the ring R modulo the ideal Q, and a set of coset repre... | 10/02/2001 |
| 6295604 | Cryptographic packet processing unit A cryptographic packet processing unit performing cryptographic operations on a data portion of a data packet based on control information included in a header of the data packet. The cryptographic packet processing unit comprises a cryptographic bus inte... | 09/25/2001 |
| 6295361 | Method and apparatus for multicast indication of group key change A method and apparatus to allow a key manager node in a network to initiate the process of changing a group key for all nodes in a multicasting group. In the described embodiment, the key manager node initiates changing the group key by setting an indicat... | 09/25/2001 |
| 6292896 | Method and apparatus for entity authentication and session key generation A system for authenticating a first entity to a second entity and for simultaneously generating a session key for encrypting communications between the entities. The first entity generates an authentication value by encrypting time-dependent information u... | 09/18/2001 |
| 6292899 | Volatile key apparatus for safeguarding confidential data stored in a computer system memory The data security system uses a volatile key apparatus to create and manage a master file, comprising a single encrypted file that is stored on the hard drive of the computer system. The master file contains all of the passwords, cryptokeys and security c... | 09/18/2001 |
| 6292893 | Certificate revocation system A certification revocation system uses a one-way function F to verify the validity of a certificate that includes a first value V. Included are means for receiving a second value V' and means for iterating F on V' and for comparing the result thereof to V... | 09/18/2001 |
| 6289103 | Signal reproducing/recording/transmitting method and apparatus and signal record medium A signal reproducing apparatus for prohibiting copying or unauthorized use. The apparatus includes a copying management information decision circuit 19 for discriminating the state of the copying management information read out from each header of a data ... | 09/11/2001 |
| 6289455 | Method and apparatus for preventing piracy of digital content A secure cryptographic rights unit for cryptographically regulating access to digital content includes an interface control processor and a specialized cryptographic unit that protects access to a memory. Rights keys, which allow access to content, are ad... | 09/11/2001 |
| 6285764 | Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk Disclosed is an optical disk barcode forming method wherein, as information to be barcoded, position information for piracy prevention, which is a form of ID, is coded as a barcode and is recorded by laser trimming on a reflective film in a PCA area of an... | 09/04/2001 |
| 6286098 | System and method for encrypting audit information in network applications A system and method for auditing network applications captures transmissions during a user session between a client and a server. An auditor capture filter captures each request from the client and each response by the server to each request. An auditor e... | 09/04/2001 |
| 6285762 | Optical disk, optical disk barcode forming method, optical disk reproduction apparatus, marking forming apparatus, method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk An optical disk includes a first area where data is recorded with pit pattern, a second information area where another data is recorded with marks which have a stripe-like configuration, and a guard band area formed between the first information area and ... | 09/04/2001 |
| 6282290 | High speed modular exponentiator A modular exponentiator is adapted to receive a first communicated signal and derive a second signal therefrom by computation of a modular exponentiation of the form be mod n based on the first signal. The modular exponentiator divides the modu... | 08/28/2001 |
| 6282650 | Secure public digital watermark A cryptographic device and corresponding method for producing a cloaked watermark which is a private watermark having the functionality of a public watermark. In one embodiment, the cryptographic device comprises an internal memory and a processor contain... | 08/28/2001 |
| 6282291 | Method and apparatus for encrypting input bit sequence An output bit sequences is derived from an initial bit sequence and this output bit sequence is used to encrypt an input bit sequence in a first mode of operation or not to so encrypt the input bit sequence in a second mode of operation. The mode of opera... | 08/28/2001 |
| 6282651 | Security system protecting data with an encryption key Proprietary information such as programs and/or data are protected using a secure processing system that includes a memory such as an EPROM in which the proprietary information is stored in a first portion of the memory. The stored information is encrypte... | 08/28/2001 |
| 6278783 | Des and other cryptographic, processes with leak minimization for smartcards and other cryptosystems Methods and apparatuses are disclosed for improving DES and other cryptographic protocols against external monitoring attacks by reducing the amount (and signal-to-noise ratio) of useful information leaked during processing. An improved DES implementation... | 08/21/2001 |
| 6275810 | Method for scheduling holidays in distributed computer enterprise locales A scheduling method operative in association with a display device of a data processing system connected in a distributed computing environment having nodes located across geographically-dispersed boundaries. The method begins by defining a set of holiday... | 08/14/2001 |
| 6275585 | Method for reprogramming a vehicle system or a user system in a vehicle A communication system (100) includes an infrastructure (150) and at least one vehicle (101), the vehicle including at least one vehicle system (103), and at least one user system (113). The infrastructure includes an application (155) which, in turn, is ... | 08/14/2001 |