PATENT CLAIM ANALYSIS

Application Number: 15908457
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-07
Patent Classification: ["704", "502000"]

Abstract:
Methods and apparatus for performing variable block length watermarking of media are disclosed. Disclosed example apparatus include means for selecting a first frequency from a set of frequencies based on a first symbol in a code, and for selecting a first block size based on the first symbol and the code, a combination of the first block size and the first frequency to represent the first symbol. Disclosed example apparatus also include means for synthesizing a code frequency according to the first block size and the first frequency. Disclosed example apparatus further include means for combining the code frequency with a first block of input audio samples of the audio having the first block size to form a block of encoded audio samples encoded with the first symbol, the code frequency and the first block of input audio samples to overlap in time.

Claim (Index 15):
An apparatus for detecting the presence of auxiliary information in an audio signal, wherein the auxiliary information is imparted onto the audio signal by emphasizing one or more frequency components of the audio signal, the apparatus comprising:\n means for sampling the audio signal to create an audio block in a buffer having a buffer size; means for storing one or more components of a frequency domain representation of the audio block in a spectral characteristics table; means for adjusting the stored components in the spectral characteristics table in accordance with elapsed time since generating the frequency domain representation to form a modified frequency domain representation; means for removing a spectral effect of an oldest sample in the audio block from the modified frequency domain representation stored in the spectral characteristics table; means for adding a spectral effect of a subsequent sample of the audio signal to the modified frequency domain representation stored in the spectral characteristics table to form an updated frequency domain spectrum in the spectral characteristics table; and means for analyzing the updated frequency domain spectrum to determine emphasis of one or more frequency components, and for determining auxiliary information corresponding to the emphasis of the one or more frequency components.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 88.0
- Lexical Diversity: 3.0
- Patent Class: 704.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12361991', '13907286', '14195547', '12249619', '12464811']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2699468641031202
- 35 USC 102 Novelty (BERT): 0.5103947543033972
- Combined Prediction Score: 0.2939916531231479
- Mean Citation Score: 233.01477000000003
- Max Citation Score: 327.68665
- Similarity Product: 309.4947183169842

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test