Media Features for Display, Print, and Fax (RFC2534)
Original Publication Date: 1999-Mar-01
Included in the Prior Art Database: 2000-Sep-13
Internet Society Requests For Comment (RFCs)
L. Masinter: AUTHOR [+4]
This specification defines some common media features for describing image resolution, size, color, and image representation methods that are common to web browsing, printing, and facsimile applications. These features are registered for use within the framework of [REG].
Network Working Group L. Masinter
Request for Comments: 2534 Xerox Corporation
Category: Standards Track D. Wing
Cisco Systems, Inc.
Media Features for Display, Print, and Fax
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright (C) The Internet Society (1999). All Rights Reserved.
This specification defines some common media features for describing
image resolution, size, color, and image representation methods that
are common to web browsing, printing, and facsimile applications.
These features are registered for use within the framework of [REG].
This work was originally motivated by the requirements from web
browsers to send the browser's display characteristics to the web
server to allow the server to choose an appropriate representation.
This specification defines some common media features [REG] by which
a recipient may inform a sender as to the characteristics of its
message handling. The sender may then provide the variant of the
message that is most suitable for the recipient.
Different variants would typically be higher or lower resolution
images (for example) as appropriate. In the case of a sending to a
printer, the result would be higher quality output. In the case of a
small screen device (cellphone, portable digital assistant), the
result would be faster transmission.
Media features may be used in many different protocol situations.
Those defined in this specification can indicate the display or
printer dimensions, resolution, color capability. The physical
dimensions of a display may be inferred from the display size and
display resolution. In the case of paper output, the paper size may
be expressed as a token from a list of standard paper sizes. These
are presented formally in the Notation section.
2. Media Feature Registrations
This section defines several media features, using the form specified
2.1 Image Size
- Media Feature tag name(s):
- ASN.1 identifier associated with this feature tag:
- Summary of the media features indicated by this fe...