Inventor

HA DAVID D

US15 patents

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

DIRECTV GROUP INC

12 patents

US6853728B1Feb 8, 2005

Video on demand pay per view services with unmodified conditional access functionality

DIRECTV GROUP INC256 citations99

US7203311B1Apr 10, 2007

Super encrypted storage and retrieval of media programs in a hard-paired receiver and storage device

DIRECTV GROUP INC65 citations98

US7457414B1Nov 25, 2008

Super encrypted storage and retrieval of media programs with smartcard generated keys

DIRECTV GROUP INC21 citations92

US7409562B2Aug 5, 2008

Method and apparatus for encrypting media programs for later purchase and viewing

DIRECTV GROUP INC26 citations92

US7225458B2May 29, 2007

Method and apparatus for ensuring reception of conditional access information in multi-tuner receivers

DIRECTV GROUP INC50 citations92

US7203314B1Apr 10, 2007

Super encrypted storage and retrieval of media programs with modified conditional access functionality

DIRECTV GROUP INC53 citations92

US7804958B2Sep 28, 2010

Super encrypted storage and retrieval of media programs with smartcard generated keys

DIRECTV GROUP INC14 citations84

US7590243B2Sep 15, 2009

Digital media conditional access system for handling digital media content

DIRECTV GROUP INC14 citations84

US7480381B2Jan 20, 2009

Super encrypted storage and retrieval of media programs in a hard-paired receiver and storage device

DIRECTV GROUP INC6 citations74

US7000241B2Feb 14, 2006

Method and apparatus for minimizing conditional access information overhead while ensuring conditional access information reception in multi-tuner receivers

DIRECTV GROUP INC10 citations74

US7039955B2May 2, 2006

Embedded blacklisting for digital broadcast system security

DIRECTV GROUP INC4 citations62

US7835522B2Nov 16, 2010

Embedded blacklisting for digital broadcast system security

DIRECTV GROUP INC1 citations52

KAHN RAYNOLD M

3 patents

US8140859B1Mar 20, 2012

Secure storage and replay of media programs using a hard-paired receiver and storage device

KAHN RAYNOLD M17 citations92

US8677152B2Mar 18, 2014

Method and apparatus for encrypting media programs for later purchase and viewing

KAHN RAYNOLD M7 citations84

US8782438B2Jul 15, 2014

Secure storage and replay of media programs using a hard-paired receiver and storage device

KAHN RAYNOLD M3 citations62