| |
Pat.
No. |
Title |
| 601. |
5,153,921
Microcomputer Oct. 6, 1992 |
| 602. |
5,152,482
Modular mother satellite bus for subsidiary payloads |
| 603. |
5,150,407
Secured data storage devices |
| 604. |
5,150,401
Retrofittable encryption/decryption apparatus using modified frequency
modulation |
| 605. |
5,150,242
Integrated optical computing elements for processing and encryption functions
employing non-linear organic polymers having photovoltaic and piezoelectric
interfaces |
| 606. |
5,148,482
Layered session data unit frame |
| 607. |
5,148,479
Authentication protocols in communication networks |
| 608. |
5,146,500
Public key cryptographic system using elliptic curves over rings |
| 609. |
5,146,498
Remote key manipulations for over-the-air re-keying |
| 610. |
5,142,579
Public key cryptographic system and method |
| 611. |
5,142,578
Hybrid public key algorithm/data encryption algorithm key distribution method
based on control vectors |
| 612. |
5,142,577
Method and apparatus for authenticating messages |
| 613. |
5,138,712
Apparatus and method for licensing software on a network of computers |
| 614. |
5,132,521
System and method for acquisition and encoding of ATM card data |
| 615. |
5,131,040
Method for backing up and erasing encryption keys |
| 616. |
5,130,993
Transmitting encoded data on unreliable networks |
| 617. |
5,130,519
Portable pin card |
| 618. |
5,128,996
Multichannel data encryption device |
| 619. |
5,128,930
Processor-to-processor communications protocol for a public service trunking
system |
| 620. |
5,126,746
Secure distance ranging by electronic means |
| 621. |
5,124,984
Access controller for local area network |
| 622. |
5,124,117
Cryptographic key distribution method and system |
| 623. |
5,123,047
Method of updating encryption device monitor code in a multichannel data
encryption system |
| 624. |
5,123,045
Comprehensive software protection system |
| 625. |
5,121,431
Processor method of multiplying large numbers |
| 626. |
5,121,429
Digital signal processing |
| 627. |
5,120,939
Databaseless security system |
| 628. |
5,117,501
Dynamic regrouping in a trunked radio communications system |
| 629. |
5,115,467
Signal encryption apparatus for generating common and distinct keys |
| 630. |
5,115,466
Communication network intended for secure transmission of speech and data |
| 631. |
5,111,504
Information processing apparatus with replaceable security element |
| 632. |
5,111,389
Aperiodic mapping system using power-of-two stride access to interleaved
devices |
| 633. |
D325,907
Portable radio |
| 634. |
D325,906
Portable radio |
| 635. |
5,109,543
Hardware interface and protocol for a mobile radio transceiver |
| 636. |
5,109,152
Communication apparatus |
| 637. |
5,101,432
Signal encryption |
| 638. |
5,097,504
Method and device for qualitative saving of digitized data |
| 639. |
5,093,860
Key management system |
| 640. |
5,091,936
System for communicating television signals or a plurality of digital audio
signals in a standard television line allocation |
| 641. |
5,086,506
Radio trunking fault detection system with power output monitoring and on-air
monitoring |
| 642. |
5,086,469
encryption with selective disclosure of protocol identifiers |
| 643. |
5,081,679
Resynchronization of encryption systems upon handoff |
| 644. |
5,077,828
RF channel expansion in a trunked radio communications system |
| 645. |
5,077,793
Residue number encryption and decryption system |
| 646. |
5,073,935
Method for secure communication |
| 647. |
5,070,528
Generic encryption technique for communication networks |
| 648. |
5,068,895
encryption and decryption methods using bit-length preservation decryptor |
| 649. |
5,068,894
Method of generating a unique number for a smart card and its use for the
cooperation of the card with a host system |
| 650. |
5,063,596
encryption printed circuit board |
| 651. |
5,060,266
Continuous cipher synchronization for cellular communication system |
| 652. |
5,060,263
Computer access control system and method |
| 653. |
5,058,164
encryption of streams of addressed information to be used for program code
protection |
| 654. |
5,058,157
Method and apparatus for encrypting and decrypting time domain signals |
| 655. |
5,056,140
Communication security accessing system and process |
| 656. |
5,054,068
Trunked radio communication system having encrypted system control
information |
| 657. |
5,054,067
Block-cipher cryptographic device based upon a pseudorandom nonlinear sequence
generator |
| 658. |
5,054,066
Error correcting public key cryptographic method and program |
| 659. |
5,054,064
Video control system for recorded programs |
| 660. |
5,052,040
Multiple user stored data cryptographic labeling system and method |
| 661. |
5,048,087
Key management for encrypted packet based networks |
| 662. |
5,048,086
encryption system based on chaos theory |
| 663. |
5,046,092
Video control system for transmitted programs |
| 664. |
5,046,090
Recorded medium for video control system |
| 665. |
5,038,376
Block substitution based encryption by a modulo 2 addition method and
apparatus |
| 666. |
5,022,076
Redundant encryption processor arrangement for use in an electronic fund
transfer network |
| 667. |
5,017,766
Portable electronic apparatus capable of confirming validity of transaction
data |
| 668. |
5,016,277
encryption key entry method in a microcomputer-based encryption system |
| 669. |
5,016,276
Common cryptokey generation system and communication system using common
cryptokeys |
| 670. |
5,016,275
Buffered encryption/decryption |
| 671. |
5,016,274
On-line/off-line digital signing |
| 672. |
5,014,310
Video scrambling and descrambling by varying sequence of segments in adjacent
video information lines |
| 673. |
5,010,573
Cryptographic system by blocs of binery data |
| 674. |
5,010,571
Metering retrieval of encrypted data stored in customer data retrieval
terminal |
| 675. |
5,008,938
encryption apparatus |
| 676. |
5,008,936
Backup/restore technique in a microcomputer-based encryption system |
| 677. |
5,008,935
Efficient method for encrypting superblocks of data |
| 678. |
5,007,087
Method and apparatus for generating secure random numbers using chaos |
| 679. |
5,007,082
Computer software encryption apparatus |
| 680. |
5,007,050
Bidirectional digital serial interface for communication digital signals
including digitized audio between microprocessor-based control and transceiver
units of two-way radio communications equipment |
| 681. |
5,003,597
Method and apparatus for data encryption |
| 682. |
5,003,596
Method of cryptographically transforming electronic digital data from one
form to another |
| 683. |
5,001,756
Decryption device with variable clock |
| 684. |
5,001,755
Security system network |
| 685. |
5,001,754
encryption system and method |
| 686. |
4,997,288
Power supply arrangement for fault-tolerant operation in a microcomputer-based
encryption system |
| 687. |
4,992,868
True information television (TITV) and vision system |
| 688. |
4,991,209
Random local message encryption |
| 689. |
4,991,208
Video control system having session encryption key |
| 690. |
4,984,270
Method and system for transmission of financial data |
| 691. |
4,982,429
Encipher method and decipher method |
| 692. |
4,980,913
Security system network |
| 693. |
4,980,912
Public communication system comprising distributed stations, and station
and sub-station for use in such a communication system |
| 694. |
4,980,679
Time varying identification badge |
| 695. |
4,979,188
Spectrally efficient method for communicating an information signal |
| 696. |
4,972,470
Programmable connector |
| 697. |
4,972,431
P-code-aided global positioning system receiver |
| 698. |
4,969,188
Process and apparatus for the protection of secret elements in a network
of encrypting devices with open key management |
| 699. |
4,965,804
Key management for encrypted packet based networks |
| 700. |
4,964,165
Method for the fast synchronization of vocoders coupled to one another by
enciphering Oct. 16, 1990 |