Raynold M. Kahn
90Patents
14h-index
71Co-inventors
87Inventor score
Filing activity: Mar 7, 1996 → Jun 11, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6853728B1 | Video on demand pay per view services with unmodified conditional access functionality | Electricity | 137 | Expired |
| US5978649A | Method and apparatus for dynamic conditional channel authorization in a broadcast system | Electricity | 67 | Expired |
| US7912219B1 | Just in time delivery of entitlement control message (ECMs) and other essential data elements for television programming | Electricity | 49 | Active |
| US7203311B1 | Super encrypted storage and retrieval of media programs in a hard-paired receiver and storage device | Electricity | 47 | Expired |
| US9456247B1 | Method and system for changing communication parameters of a content delivery system based on feedback from user devices | Electricity | 46 | Active |
| US7225458B2 | Method and apparatus for ensuring reception of conditional access information in multi-tuner receivers | Electricity | 38 | Expired |
| US9485469B2 | Methods and apparatus to provide content on demand in content broadcast systems | Electricity | 32 | Active |
| US5777997A | Method and system for transmitting audio-associated text information in a multiplexed transmission stream | Electricity | 30 | Expired |
| US9967521B2 | Methods and apparatus to provide content on demand in content broadcast systems | Electricity | 29 | Active |
| US7797552B2 | Method and apparatus for controlling paired operation of a conditional access module and an integrated receiver and decoder | Electricity | 29 | Expired |
| US7203314B1 | Super encrypted storage and retrieval of media programs with modified conditional access functionality | Electricity | 29 | Expired |
| US8095466B2 | Methods and apparatus to conditionally authorize content delivery at content servers in pay delivery systems | Physics | 27 | Expired |
| US7409562B2 | Method and apparatus for encrypting media programs for later purchase and viewing | Physics | 16 | Expired |
| US7992175B2 | Methods and apparatus to provide content on demand in content broadcast systems | Electricity | 14 | Active |
| US8001565B2 | Methods and apparatus to conditionally authorize content delivery at receivers in pay delivery systems | Electricity | 14 | Expired |
| US7457967B2 | Hidden identification | Physics | 12 | Expired |
| US8140859B1 | Secure storage and replay of media programs using a hard-paired receiver and storage device | Electricity | 12 | Expired |
| US7457414B1 | Super encrypted storage and retrieval of media programs with smartcard generated keys | Electricity | 12 | Expired |
| US8533767B1 | Method and system for prioritizing content in a delivery queue of a content delivery system | Electricity | 11 | Active |
| US7369660B1 | Methods and apparatus for distributing digital content | Electricity | 10 | Expired |
| US8996421B2 | Methods and apparatus to conditionally authorize content delivery at broadcast headends in pay delivery systems | Electricity | 10 | Active |
| US8775319B2 | Secure content transfer systems and methods to operate the same | Physics | 10 | Active |
| US8732780B2 | Content delivery systems and methods to operate the same | Electricity | 9 | Active |
| US7804958B2 | Super encrypted storage and retrieval of media programs with smartcard generated keys | Electricity | 9 | Active |
| US7895341B2 | Method and apparatus for file sharing between a group of user devices with separately sent crucial portions and non-crucial portions | Electricity | 9 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.