John P Wiedemer Deceased930 Forest St, Houston, TX 77079

5781384, Jul 14, 1998

Aug 2, 1995

8/510245

John David Wiedemer - Houston TX

G11B 23087
G11B 2328

360132

A tape cassette or the like employs a resettable counter that disables the playing of the cassette after a limited number of playings consistent with home use. The small number of playings is supported by a machine resetting procedure that automatically records the usage and resets the cassette by translating information on a label on the cassette into a sequence of moves that unlocks the resetting mechanism that is otherwise locked against unauthorized parties. The label also includes a machine readable description of the program. Cassettes with the same program material have different reset codes on their labels to limit the resetting of some cassettes to particular machines thus lessening the economic incentive of obtaining or constructing unauthorized resetting equipment.

4905280, Feb 27, 1990

Sep 22, 1987

7/100024

John D. Wiedemer - Houston TX

H04N 7167

380 16

A pay per use system allows the broadcast of television, videotext, and videogame programming all in the same system. The programming is broadcast in scrambled form with a broadcast signal imbedded in the program broadcast. The receiving station decoder has an internal code assigned to it plus is provided with an external code contained in a removable memory module from which it can generate signals to descramble the input program content. Television programming is viewed directly on a television screen while videotext and videogame programming are loaded onto a remote memory unit specifically adapted to interfit and mate to economical home computers specifically intended for videogames. The routing of the program, either to the television or to the remote memory unit is controlled by information in the broadcast code imbedded in the broadcast itself.

5047928, Sep 10, 1991

Jan 3, 1989

7/292927

John D. Wiedemer - Houston TX

H04L 900

364406

A computer software security and billing system is disclosed in which the application program is enciphered in accordance with an algorithm driven by a numeric key. The user's computer is provided with a hardware security module and a removable billing module, both of which carry unique codes. A security program accesses the application program and also writes information about billing into the billing module. The billing module is periodically replaced so the user can be charged based on amount of usage of the software.

4908834, Mar 13, 1990

Sep 22, 1987

7/100577

John D. Wiedemer - Houston TX

H04N 7167

380 5

A high security pay television system is provided in which television receivers include a decoder and with periodically changed removable memory modules. The decoder only functions to properly descramble the scrambled broadcase signal when a changeable system-wide code is available in the decoder. The code can either be carried in the memory module, or an internal code unique to the decoder and resident in the decoder can be combined with an external code in the removable memory module, and also unique to that decoder, to generate the common systemwide system code. Program viewership is written on the removable memory module which is returned to a central facility for later subscriber billing.

5155680, Oct 13, 1992

Apr 27, 1989

7/345128

John D. Wiedemer - Houston TX

Signal Security Technologies - Houston TX

G06F 1500

364406

A computer software security and billing system is disclosed in which the application program is enciphered in accordance with an algorithm driven by a numeric key. The user's computer is provided with a hardware security module and a removable billing module, both of which carry unique codes. A security program accesses the application program and also writes information about billing into the billing module. The billing module is periodically replaced so the user can be charged based on amount of usage of the software. The security system is also capable of operating to provide data and program security independent of the billing function.

4807286, Feb 21, 1989

Apr 22, 1987

7/041308

John D. Wiedemer - Houston TX

H04N 7167
G06K 1500

380 16

A high security pay television system is provided in which television receivers include a decoder and with periodically changed removable memory modules. The decoder only functions to properly descramble the scrambled broadcase signal when a changeable system-wide code is available in the decoder. The code can either be carried in the memory module, or an internal code unique to the decoder and resident in the decoder can be combined with an external code in the removable memory module, and also unique to that decoder, to generate the common systemwide system code. Program viewership is written on the removable memory module which is returned to a central facility for later subscriber billing.

4796181, Jan 3, 1989

Oct 24, 1986

6/922689

John D. Wiedemer - Houston TX

H04L 900

364406

A computer software security and billing system is disclosed in which the application program is enciphered in accordance with an algorithm driven by a numeric key. The user's computer is provided with a hardware security module and a removable billing module, both of which carry unique codes. A security program accesses the application program and also writes information about billing into the billing module. The billing module is periodically replaced so the user can be charged based on amount of usage of the software.

4907273, Mar 6, 1990

Sep 22, 1987

7/100243

John D. Wiedemer - Houston TX

H04N 7167
G06K 500

380 16

A high security pay television system is provided in which subscribers are provided with a decoder and with periodically changed removable memory modules. The decoder only functions to properly descramble the scrambled broadcast signal when a changeable system-wide code is available in the decoder. The code can either be carried in the memory module, or an internal code unique to the decoder and resident in the decoder can be combined with a external code in the removable memory module, and also unique to that decoder, to generate the common systemwide system code. Program viewership is written on the removable memory module. The removable memory module is provided with a pre-written limit of program viewing authorization so that when the limit is reached, further viewing is not possible.