Inventor

EPSTEIN MICHAEL A

US30 patents

⚠️ This page may combine multiple inventors who share the name “EPSTEIN MICHAEL A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EPSTEIN MICHAEL A

KONINKL PHILIPS ELECTRONICS NV

Usage dependent ticket to protect copy-protected material

Secure proxy signing device and method of use

Administration and utilization of private keys in a networked environment

Method and apparatus for secure distribution of public/private key pairs

Method and apparatus for use of a time-dependent watermark for the purpose of copy protection

Multi-node encryption and key delivery

Registering copy protected material in a check-out, check-in system

Key exchange via a portable remote control device

Protecting content from illicit reproduction by proof of existence of a complete data set using security identifiers

Protecting content from illicit reproduction by proof of existence of a complete data set via a linked list

Usage dependent ticket to protect copy-protected material

Method and apparatus for confirming and revoking trust in a multi-level content distribution system

Method and apparatus for generating random numbers using flip-flop meta-stability

Methods and apparatus for secure content distribution

Protecting content from illicit reproduction by proof of existence of a complete data set via self-referencing sections

Method and apparatus for use of a time-dependent watermark for the purpose of copy protection

Method and apparatus for decorrelating a random number generator using a pseudo-random sequence

Using real random number generator as proof of time

Usage dependent ticket to protect copy-protected material

Copy protection via redundant watermark encoding

Protecting content from illicit reproduction by proof of existence of a complete data set via self-referencing sections

Methods of attack on a content screening algorithm based on adulteration of marked content

Secure proximity verification of a node on a network

EPSTEIN MICHAEL A

Verifying a node on a network

Access authorization across processing devices

Key distribution via a memory device

PHILIPS ELECTRONICS NA

Method of secure anonymous query by electronic messages transported via a public network and method of response

Administration and utilization of secret fresh random numbers in a networked environment

PHILIPS CORP

Multi-processor video display apparatus

ROSNER MARTIN C

Secure proximity verification of a node on a network