The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 23, 2024

Filed:

Jun. 01, 2022
Applicant:

Cinemo Gmbh, Karlsruhe, DE;

Inventors:

Ivan Dimkovic, Karlsruhe, DE;

Richard Lesser, Karlsruhe, DE;

Enrik Berkhan, Stutensee, DE;

Assignee:

CINEMO GMBH, Karlsruhe, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 21/414 (2011.01); G06F 21/10 (2013.01); H04N 21/214 (2011.01); H04N 21/43 (2011.01); H04N 21/4363 (2011.01); H04N 21/4405 (2011.01);
U.S. Cl.
CPC ...
H04N 21/41422 (2013.01); H04N 21/214 (2013.01); H04N 21/4307 (2013.01); H04N 21/4363 (2013.01); H04N 21/4405 (2013.01); G06F 21/1062 (2023.08);
Abstract

There are disclosed distributed playback, DP, techniques. For examples a DP master device, may: establish a local connection with a plurality of DP client devices and for establishing a remote connection with a remote content provider, so as to receive a first encrypted media stream from the remote content provider; decrypt the first encrypted media stream to obtain a decrypted media stream; adding DP information, DPI, to the decrypted media stream; encrypting the decrypted media stream according to a second encryption standard to obtain a second encrypted stream; additionally encrypting the DPI in the second encrypted media stream or adding the DPI to the encrypted media stream in plaintext, transmitting an output media stream, which is the second encrypted media stream, to the plurality of DP client devices.


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