Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 6760840 | File editing system and shared file editing system with file content secrecy, file version management, and asynchronous editing A file editing system that provides a high file content secrecy, a file version management, and an asynchronous editing is disclosed. For a high file content secrecy, the block data of files managed by a file management server device are enciphered in units of block... | 07/06/2004 |
| 6215874 | Random number generator and method for same A method and system of generating random numbers using imaging transducers of a charge coupled array. Noise signals detected by a first and a second imaging transducers of the array are processed together to yield a first value; noise signals detected by ... | 04/10/2001 |
| 6212634 | Certifying authorization in computer networks A system for certifying authorizations includes an authorizing computer and an authorized computer interconnected by a computer network. The authorizing computer creates a public key pair comprising a new public key and a new private key, and creates an a... | 04/03/2001 |
| 6182218 | Digital content management system using electronic watermark A system for managing a digital content, particularly a digital content to which a copyright is claimed, and a system for supplying a public-key which is used in the management of the digital content are provided. The digital content management program is... | 01/30/2001 |
| 6175921 | Tamper-proof devices for unique identification A system for open electronic commerce having a customer trusted agent securely communicating with a first money module, and a merchant trusted agent securely communicating with a second money module. Both trusted agents are capable of establishing a first... | 01/16/2001 |
| 6173401 | Importing information onto a chip card The invention relates to a method of importing information, in particular application information, onto a chip card which has a memory with a directory. The information being transferred onto the chip card comprises data and code, and it is often necessar... | 01/09/2001 |
| 6170058 | Method and apparatus for cryptographically camouflaged cryptographic key storage, certification and use A digital wallet stores an cryptographically camouflaged access-controlled datum, e.g., a private key encrypted under the user's PIN. Entry of the correct PIN will correctly decrypt the stored key. Entry of certain pseudo-valid PINs will also decrypt the ... | 01/02/2001 |
| 6157919 | PC-based open metering system and method A transaction evidencing system includes a personal computer (PC) comprising a processor, memory and hard drive, with a plurality of non-metering application programs that selectively run on the PC. An unsecured printer is operatively coupled to the PC fo... | 12/05/2000 |
| 6154542 | Method and apparatus for simultaneously encrypting and compressing data A method and apparatus for simultaneously encrypting and compressing data identifies an encryption key and uses the encryption key to identify one compression algorithm from a set of compression algorithms. The data is then compressed according to the one... | 11/28/2000 |
| 6154541 | Method and apparatus for a robust high-speed cryptosystem A cryptographic information and communication system of the knapsack type characterized by secret logical segregation of the key sets into sections by different construction methods, where different transformations are applied to different sections, and c... | 11/28/2000 |
| 6154544 | Rolling code security system A rolling code transmitter is useful in a security system for providing secure encrypted RF transmission comprising an interleaved trinary bit fixed code and rolling code. A receiver demodulates the encrypted RF transmission and recovers the fixed code an... | 11/28/2000 |
| 6151590 | Network open metering system A transaction evidencing system includes a plurality of computer systems operatively configured to form a network with one of the computer systems functioning as a server and the remaining computer systems functioning as clients. Each of the computer syst... | 11/21/2000 |
| 6151679 | System and method for preventing a first node from being emulated by another node A network security device 10 is connected between a protected client 12 and a network 100. The network security device 10 negotiates a session key with any other protected client. Then, all communications between the two clients are encrypted. The inventi... | 11/21/2000 |
| 6148084 | Restrictedly blindable certificates on secret keys A method for an issuer party to issue DSA-like secret-key certificates that can be blinded only restrictively. The method includes the step of generating a secret key (x0,y) and a public key (descr(Gq), g, h0, g1 | 11/14/2000 |
| 6134325 | Key transmission system A RSA encryption scheme includes a modulus in which at least one set of bits is of a predetermined configuration. The configuration may be selected to replicate the identity of the recipient or other information normally transmitted between the parties or... | 10/17/2000 |
| 6128738 | Certificate based security in SNA data flows A method and system for enabling the use of a single client certificate to be used in SNA communications to ensure security such that the certificate cannot be intercepted and reused yet still allowing the use of a single certificate for multiple applicat... | 10/03/2000 |
| 6115735 | Message guaranty system A message guaranty system for having a reliable third party (evidence preparing server) prepare evidence information attesting to the transmission and reception of a message by a transmitting and a receiving terminal. When the transmitting terminal furnis... | 09/05/2000 |
| 6104812 | Anti-counterfeiting method and apparatus using digital screening An apparatus and process for hiding the secondary image within the primary image and generating a high quality hard copy of the unified elemental image of a variety of media. The process comprises the steps of rasterizing the first image into an first ele... | 08/15/2000 |
| 6101254 | Security method for making secure an authentication method that uses a secret key algorithm The security method is associated with an authentication method comprising steps of obtaining a calculated result from a random number subjected to a secret key algorithm, the security method includes steps of calculating a test result from a reference ra... | 08/08/2000 |
| 6097816 | Crypt key system A crypt key system for decrypting encrypted data for use, by a permit key including a decryption key, comprising a database/charging center, a broadcasting station, a receiving device and a communication device. The permit key is supplied to the broadcast... | 08/01/2000 |
| 6097818 | Data copyright management method The present invention provides a process for managing data copyright in the case when a primary user produces new data by editing a plurality of original data which have been supplied from data broadcasting, a recording medium or a database, and supplies ... | 08/01/2000 |
| 6088799 | Security method and system for persistent storage and communications on computer network systems and computer network systems employing the same A process is described in which a user enters ID and password information at a network client computer terminal. This information is combined with an asymmetric key stored in a persistent storage directly accessible to the client's computer terminal. This... | 07/11/2000 |
| 6088797 | Tamper-proof electronic processing device A system for open electronic commerce having a customer trusted agent securely communicating with a first money module, and a merchant trusted agent securely communicating with a second money module. Both trusted agents are capable of establishing a first... | 07/11/2000 |
| 6088680 | Automatic toll adjusting system, and storage medium with a radio communication function, frequency converting apparatus, writing apparatus, settling apparatus, depositing apparatus and inquiring apparatus therefor An automatic toll adjusting system enables a user to voluntarily select a toll payment system with use of a storage medium carried by each user and storing adjustment information necessary for toll adjusting therein. Information is exchanged with the stor... | 07/11/2000 |
| 6088455 | Methods and apparatus for selectively reproducing segments of broadcast programming Systems and methods for editing broadcast programming signals which allow a user to compile a proprietary signal tailored to the user's individual preferences are provided. Systems of the present invention include a receiver for receiving a broadcast prog... | 07/11/2000 |
| 6085322 | Method and apparatus for establishing the authenticity of an electronic document The present invention consists of a method and apparatus for authenticating an electronic document. In one embodiment of the invention, a party wishing to digitally sign an electronic document (the "client") stores the unsigned electronic document, and th... | 07/04/2000 |
| 6084966 | Communicating encrypted signals in which random bits and random bit position data are inserted A transmitted signal is enciphered or concealed to thereby prevent interference, even when data indicative of the receiver terminal is made public because of the use of a common access channel. In the transmitter, in a random-number bit adder 6, a random-... | 07/04/2000 |
| 6081793 | Method and system for secure computer moderated voting A method and system is provided for improved electronic voting. The system optionally allows paper type ballots to be utilized. A plurality of cryptographic routines are utilized in a distributed data processing system to maximize the privacy of both the ... | 06/27/2000 |
| 6081598 | Cryptographic system and method with fast decryption A cryptography system improves the decryption speed in the RSA algorithm by taking advantage of certain subgroups of Zn *. The cryptography system employs a new family of trapdoor permutations based on exponentiation in subgroups of Zn | 06/27/2000 |
| 6079019 | IC memory card An IC memory card having an interface circuit complying with PC card standard and a memory comprises a password check circuit for comparing a password input from an external computer with a predetermined password and one or both of a data decipherment cir... | 06/20/2000 |
| 6078665 | Electronic encryption device and method A device and method is provided using a split processor based architecture to provide physical security of information by implementing a required protocol before releasing information. The information is used as a key to a cryptographic algorithm. A chaot... | 06/20/2000 |
| 6076077 | Data management system A system for dealing in an original data content and an edited data content. A data content is handled as an object, and the data content is edited by editing a data content, functioning as an object, in accordance with an edit program. The edited data co... | 06/13/2000 |
| 6075860 | Apparatus and method for authentication and encryption of a remote terminal over a wireless link A method and system for authenticating an authorized user of a remote terminal attempting to interconnect with a computer network over a wireless modem is provided. An encrypted wireless communication channel is established between a remote terminal and a... | 06/13/2000 |
| 6069953 | Personal computer having a security function, a method of implementing the security function, and methods of installing and detaching a security device to/from a computer A personal computer having a security function, a security method therefor, and methods of installing and detaching a security device are provided. In the security method, a password is dispersedly stored in the personal computer and a hard disk is booted... | 05/30/2000 |
| 6069952 | Data copyright management system A data copyright management system comprises a database for storing original data, a key control center for managing crypt keys, copyright management center for managing data copyrights, and a communication network for connecting these sections. Data supp... | 05/30/2000 |
| 6064739 | System and method for copy-protecting distributed video content A secure video content processor ("SVCP") which receives encrypted digital video information and converts it into analog information for a monitor while preventing unauthorized access to the intermediate unencrypted digital data. The SVCP uses hardware en... | 05/16/2000 |
| 6061390 | P-code enhanced method for processing encrypted GPS signals without knowledge of the encryption code In the preferred embodiment, an encrypted GPS signal is down-converted from RF to baseband to generate two quadrature components for each RF signal (L1 and L2). Separately and independently for each RF signal and each quadrature component, the four down-c... | 05/09/2000 |
| 6061790 | Network computer system with remote user data encipher methodology Computer-implemented methodology is described which allows any user to access a "network client" machine (e.g., PC, ATM machine, cell phone, or the like) which is connected to a network but which does not know the authentication of the user. With only the... | 05/09/2000 |
| 6055635 | Method and device for facilitating access to a multitude of alphanumeric sequences A method and a device for facilitating authorized and simultaneously restraining unauthorized access to a multitude of alphanumeric sequences, for instance for credit cards, code keys and the like. According to the method every correct sequence (e.g. 5533... | 04/25/2000 |
| 6055634 | Secure internal communication system A communications system includes a plurality of interfaces (20) each of which can receive and/or transmit data to a common transmission network (21). Each interface (20) transmitting data to the network (21) attaches a classification code to the transmitt... | 04/25/2000 |
