Syntax and semantics for device capabilities

Abstract

A method for receiving a device capability associated with a service guide is described. The method may include (a) receiving a content fragment within said service guide; (b) receiving capabilities syntax element within said content fragment that indicates required capabilities for decoding and presenting signaled content; (c) wherein said capabilities syntax element includes: (i) an element capability code (ccode) that represents a certain capability or capability group defined by 1 to 4 hexadecimal digits (1*4HEXDIG); (ii) an element capability string code (capability_string_code) having a first operand (ubyte) that represents a registry identified by capability category code and a second operand (1*utf8) that specifies a capability or capability group within said registry, where said first operand (ubyte) is defined as 1 to 3 digits (1*3DIGIT) and said utf8 is defined as one or more UTF-8 characters (*(UTF8-char)); (d) decoding said service guide.

Dependencies are inferred from the claim text.