US5530655A

Title

Digital sub-band transmission system with transmission of an additional signal

Application Number:

US19950483009

Publication Date:

25-06-1996

Family ID:

Application Date:

06-06-1995

Declaring Company:

Publication Country:

US

Priority Date:

02-06-1989

Title

Digital sub-band transmission system with transmission of an additional signal

Application Number:

US19950483009

Family ID:

Publication Country:

US

Publication Date:

25-06-1996

Application Date:

06-06-1995

Priority Date:

02-06-1989

Declaring Company:

Abstract  Abstract

A transmission channel may be utilized for a combination of wide-band signals and auxiliary signals while still providing improved reproduction accuracy. Digital sub-signals or subband signals representing at least first and second data-reduced components are combined with at least one auxiliary digital signal in defined frame portions before transmission. The auxiliary signal may be user-discernible information such as third and fourth audio channels so that a four channel surround sound signal is transmitted; or teletext or video or picture information may be provided. Sampling reduction and filtering into subbands may be applied to the auxiliary signal as well as to the first and second signal components.

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.