US 5,848,154 A · Apparatus for managing software using quantity

Abstract

A DES decrypting unit decrypts video data frames encrypted and compressed based on MPEG standards, when receiving them. The decrypted video data frames are expanded one by one in a MPEG expansion circuit. Each time the single frame is expanded, the MPEG expansion circuit outputs a completion-of-frame-expansion signal to a host control CPU. The host control CPU counts the completion-of-frame-expansion signals and reduces an accounting count value in an accounting data memory in accordance with this count value. The host control CPU output character pattern image data from a pattern generator when the accounting count value becomes 0. The character pattern image data is superimposed on a video signal in an adder circuit.

Claims17

Dependent claims

A software usage management apparatus comprising:

a detector to detect a usage of software and output a value indicating the usage of the software;
a determining block to determine when the usage of the software, detected by said detector, has reached a predetermined value;
and
a hindering block to stop the useful output of the software by outputting a signal produced by the software in a different form when said determining block determines that the usage of the software reaches the predetermined value.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

08/502,354Filed 14 Jul 1995

Priority

JP 6-21936710 Aug 1994

Granted

8 Dec 1998

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04N 9/8042
Involving pulse code modulation of the colour picture signal components: involving data reduction
G06F 21/10
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity: protecting distributed…
G06F 11/3409
Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of…:…
G06F 2201/88
Indexing scheme relating to error detection, to error correction, and to monitoring: monitoring involving counting

Apparatus for managing software using quantity

Life of this patent

Apparatus for managing software using quantity

Life of this patent

Abstract

Claims17