| |
Pat.
No. |
Title |
| 701. |
4,964,164
RSA computation method for efficient batch processing |
| 702. |
4,962,531
Transaction system comprising one or more host exchanges and a number of
distributed terminal stations |
| 703. |
4,961,221
Communication method and system with encryption of information |
| 704. |
4,960,982
IC card with secure mass storage memory |
| 705. |
4,953,211
encryption apparatus |
| 706. |
4,949,381
Electronic indicia in bit-mapped form |
| 707. |
4,944,009
Pseudo-random sequence generator |
| 708. |
4,944,006
Secure data packet transmission system and method |
| 709. |
4,939,746
Trunked radio repeater system |
| 710. |
4,937,861
Computer software encryption apparatus |
| 711. |
4,937,574
Data conversion |
| 712. |
4,935,961
Method and apparatus for the generation and synchronization of cryptographic
keys |
| 713. |
4,935,882
Probability adaptation for arithmetic coders |
| 714. |
4,933,971
Method for encrypting transmitted data using a unique key |
| 715. |
4,926,496
Method and apparatus for infrequent radio users to simply obtain emergency
assistance |
| 716. |
4,926,481
Computer access security code system |
| 717. |
4,926,475
Data encryption key failure monitor |
| 718. |
4,924,515
Secure management of keys using extended control vectors |
| 719. |
4,924,513
Apparatus and method for secure transmission of data over an unsecure
transmission channel |
| 720. |
4,920,565
Method for connection of secure conference calls |
| 721. |
4,919,545
Distributed security procedure for intelligent networks |
| 722. |
4,918,728
Data cryptography operations using control vectors |
| 723. |
4,914,696
Communications system with tandem scrambling devices |
| 724. |
4,914,586
Garbage collector for hypermedia systems |
| 725. |
4,912,762
Management of cryptographic keys |
| 726. |
RE33,189
Security system for SSTV encryption |
| 727. |
4,910,777
Packet switching architecture providing encryption across packets |
| 728. |
4,910,776
encryption printed circuit board |
| 729. |
4,908,861
Data authentication using modification detection codes based on a public
one way encryption function |
| 730. |
4,907,275
encryption apparatus |
| 731. |
4,906,828
Electronic money purse and fund transfer system |
| 732. |
4,905,302
Trunked radio repeater system |
| 733. |
4,905,234
Apparatus and method for transmitting digital data over a radio communications
channel |
| 734. |
4,903,298
System for providing encryption and decryption of voice and data transmissions
to and from an aircraft |
| 735. |
4,903,262
Hardware interface and protocol for a mobile radio transceiver |
| 736. |
4,901,349
Time dispersal encryption of TV signals |
| 737. |
4,897,876
Method of and an arrangement for digital signal encryption |
| 738. |
4,897,875
Key management system for open communication environments |
| 739. |
4,893,339
Secure communication system |
| 740. |
4,891,781
Modulo arithmetic processor chip |
| 741. |
4,891,643
Arithmetic coding data compression/de-compression by selectively employed,
diverse arithmetic coding encoders and decoders |
| 742. |
4,888,800
Secure messaging systems |
| 743. |
4,885,779
Personal identification encryptor system with error-correcting code and
method |
| 744. |
4,883,291
Dot matrix formed security fonts |
| 745. |
4,882,779
Apparatus for communicating with data systems and a method of communicating
with data systems |
| 746. |
4,882,752
Computer security system |
| 747. |
4,881,264
Digital signature system and method based on a conventional encryption
function |
| 748. |
4,881,263
Apparatus and method for secure transmission of data over an unsecure
transmission channel |
| 749. |
4,878,246
Method and apparatus for generating encryption/decryption key |
| 750. |
4,876,718
Secure data packet transmission system and method |
| 751. |
4,870,683
Personal identification encryptor system and method |
| 752. |
4,866,773
System for interfacing a digital encryption device to a time-division multiplexed
communication system |
| 753. |
4,866,771
Signaling system |
| 754. |
4,866,769
Hardware assist for protecting PC software |
| 755. |
4,864,616
Cryptographic labeling of electronically stored data |
| 756. |
4,864,615
Reproduction of secure keys by using distributed key generation data |
| 757. |
4,864,494
Software usage authorization system with key for
decrypting/re-encrypting/re-transmitting moving target security codes from
protected software |
| 758. |
4,862,501
Communications network using IC cards |
| 759. |
4,856,063
No-overhead synchronization for cryptographic systems |
| 760. |
4,853,962
encryption system |
| 761. |
4,850,019
Data randomization equipment |
| 762. |
4,841,570
One-way transformation of information |
| 763. |
4,835,731
Processor-to-processor communications protocol for a public service trunking
system |
| 764. |
4,831,555
Unsecured postage applying system |
| 765. |
4,829,568
System for the printing and reading of encrypted messages |
| 766. |
4,827,513
Communications system |
| 767. |
4,827,113
Technique for authenticating IC card and terminal |
| 768. |
4,825,050
Security transaction system for financial data |
| 769. |
4,823,388
Communications network using an enciphering and deciphering device |
| 770. |
4,821,292
Adaptive limiter/detector which changes time constant upon detection of dotting
pattern |
| 771. |
RE32,905
Satellite communications system and apparatus |
| 772. |
4,815,129
Video encryption system |
| 773. |
4,815,128
Gateway system and method for interconnecting telephone calls with a digital
voice protected radio network |
| 774. |
4,809,327
Encrtption of messages employing unique control words and randomly chosen
encryption keys |
| 775. |
4,803,725
Cryptographic system using interchangeable key blocks and selectable key
fragments |
| 776. |
4,802,218
Automated transaction system |
| 777. |
4,802,215
Security system for television signal encryption |
| 778. |
4,799,258
Apparatus and methods for granting access to computers |
| 779. |
4,797,928
encryption printed circuit board |
| 780. |
4,797,921
System for enciphering or deciphering data |
| 781. |
4,797,920
Electronic funds transfer system with means for verifying a personal
identification number without pre-established secret keys |
| 782. |
4,791,669
encryption/decryption system |
| 783. |
4,790,012
encryption-decryption system |
| 784. |
4,780,905
Computer data encryption system |
| 785. |
4,780,828
Mailing system with random sampling of postage |
| 786. |
4,776,013
Method and apparatus of encryption of optical images |
| 787. |
4,776,011
Recursive key schedule cryptographic system |
| 788. |
4,771,462
Communication port encryption/decryption method and apparatus |
| 789. |
4,771,458
Secure data packet transmission system and method |
| 790. |
4,764,959
Single-chip microcomputer with encryptable function on program memory |
| 791. |
4,760,598
Coded data transmission system |
| 792. |
4,759,062
Arrangement for and method of protecting private security codes from unauthorized
disclosure |
| 793. |
4,757,535
System for encrypted information transmission |
| 794. |
4,757,534
Code protection using cryptography |
| 795. |
4,757,533
Security system for microcomputers |
| 796. |
4,757,531
encryption of television signals |
| 797. |
4,757,468
Authenticated read-only memory |
| 798. |
4,747,139
Software security method and systems |
| 799. |
4,744,080
Apparatus for receiving digital sound/data information |
| 800. |
4,736,423
Technique for reducing RSA Crypto variable storage Apr. 5, 1988 |