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.
Patent No.:
Date of Patent:
Jun. 07, 1988
Filed:
May. 21, 1986
Bjorn Bluthgen, Celle, DE;
Polygram International Holding B.V., Baarn, NL;
Abstract
The invention relates to a method of transmitting audio information in digital form, in which for the transmission of additional information in digital form data bits of said additional information replace one or a plurality of least significant bits in every n.sup.th code word of the audio information. For this purpose one or a plurality of least significant bits of the audio information in every n.sup.th code word is/are replaced in predetermined manner by additional information bits, the number of bits being replaced depending on the value of the instantaneous code word of the audio information. This dependence is such that for larger values of the audio information more bits are replaced than for smaller values.