EP0402973B1

Title

Digital transmission system transmitter and receiver for use in the transmission system and record carrier obtained by means of the transmitter in the form of a recording device.

Application Number:

EP19900201356

Publication Date:

30-11-1994

Current Assignee:

Family ID:

Application Date:

29-05-1990

Declaring Company:

Publication Country:

US

Priority Date:

02-06-1989

Title

Digital transmission system transmitter and receiver for use in the transmission system and record carrier obtained by means of the transmitter in the form of a recording device.

Application Number:

EP19900201356

Family ID:

Publication Country:

US

Publication Date:

30-11-1994

Application Date:

29-05-1990

Priority Date:

02-06-1989

Current Assignee:

Declaring Company:

Abstract  Abstract

The transmitter (1) in a digital transmission system derives from a wideband digital signal SBB having a sample frequency Fs a second digital signal appearing on its output (7), which signal comprises successive frames, each frame being made up of information packets (IP) each having a length of N bits. The number of information packets (B) in a frame is determined as follows:
If P in the formula is an integer, where
BR is the bit rate of the second digital signal,
ns is the number of samples of the wide-band digital signal,
SBB in which the information, after having been converted into the second digital signal, is present in one frame of the second digital signal,
the number of information packets B in a frame is equal to P. If P is not an integer, B is equal to P′ for a number of frames, P′ being the next lower integer following P, whereas B for the other frame is equal to P′+1, in such a way that the average frame rate of the second digital signal is substantially equal to Fs/ns.
A frame comprises a first frame portion (FD1), a second frame portion (FD2), and a third frame portion (FD3). The first frame portion contains synchronising information and system information. The second frame portion contains allocation information, and the third frame portion contains samples of and, if applicable, scale-factor information for the second digital signal.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.