This inventor holds 3 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Irdeto Eindhoven B.v., Koninklijke Philips Corporation N.v.. Active years: 2002-2009.
Company Filing History:
2 out of 4 
1 out of 21,871 
Years Active: 2002-2009
Title: Robert Schipper: Innovator in Conditional Access Technologies
Introduction
Robert Schipper is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the field of conditional access technologies, holding three patents that showcase his innovative spirit and technical expertise.
Latest Patents
One of Schipper's latest patents is a conditional access method and devices. This invention involves a data stream containing content data that can be decrypted using control words. The patent describes how ECM messages included in the stream contain the control words required for decrypting nearby content data. Additionally, EMM messages provide management information for entitling selected stream receiving devices to decrypt content data using control words from ECM messages. The secure device detects further management information when the control words are supplied and tests whether this information is targeted at the stream receiving device. If so, the secure device indefinitely disables subsequent decryption of at least part of the stream. Another notable patent is a device and method for selectively supplying access to a service encrypted using a control word. This invention involves a service received with an entitlement control message (ECM) that comprises authorization data and a validity period. The service is decrypted only if the ECM is found valid, and it can be stored on a storage medium such as a DVD.
Career Highlights
Throughout his career, Robert Schipper has worked with prominent companies in the technology sector. He has been associated with Irdeto Eindhoven B.V. and Koninklijke Philips Corporation N.V., where he has contributed to advancements in digital security and access control technologies.
Collaborations
Schipper has collaborated with notable professionals in his field, including Engelbertus Van Willigen and Erwin Jeroen Van Dommelen. These collaborations have likely enriched his work and contributed to the development of innovative solutions in conditional access technologies.
Conclusion
Robert Schipper's contributions to conditional access technologies through his patents and collaborations highlight his role as an influential inventor in the field. His work continues to impact the way digital content is accessed and managed.