PATENT CLAIM ANALYSIS

Application Number: 15933844
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["375", "240030"]

Abstract:
The present invention provides a video encoder and a method of operating the video encoder to implement high-precision bit rate control by reducing the risk of overflow of an intermediate buffer coupled between a quantizer and an encoding section. The intermediate buffer supplies a selection control signal indicative of whether the amount of stored data is large or small to a selector. If the selection control signal indicates large, the selector outputs an estimated code amount from a code amount estimation section to the rate controller. If the selection control signal indicates small, the selector outputs an actual code amount from the encoding section to the rate controller. The rate controller calculates the quantization scale according to the output of the selector and feedbacks the calculated quantization scale to the quantizer. The quantizer adjusts the quantizer scale.

Claim (Index 21):
A video encoder comprising:\n a frequency converter; a quantizer; an encoding section; an intermediate buffer; a code amount estimation section; a code amount selector; and a rate controller, wherein the frequency converter performs a frequency conversion process on an input signal, wherein the quantizer performs a quantization process on the result of the frequency conversion process performed by the frequency converter, wherein the encoding section generates a compressed video bit stream by performing an encoding process on the result of the quantization process performed by the quantizer, wherein the intermediate buffer is coupled between the output terminal of the quantizer and the input terminal of the encoding section in order to absorb a difference between a processing speed of the quantizer and a processing speed of the encoding section, wherein the input terminal of the code amount estimation section is coupled to the output terminal of the quantizer, wherein an estimated code amount generated from the output terminal of the code amount estimation section is supplied to the first input terminal of the code amount selector, wherein an actual code amount of the compressed video bit stream encoded by the encoding section is supplied to the second input terminal of the code amount selector, wherein a determination signal indicative of whether the amount of data stored in the intermediate buffer is large or small is supplied to a selection control terminal of the code amount selector, wherein the output terminal of the code amount selector is coupled to the input terminal of the rate controller, wherein an output signal of the rate controller is used to adjust a quantization scale of the quantizer, wherein, if the determination signal indicates that the amount of data stored in the intermediate buffer is large, the estimated code amount from the code amount estimation section, which is supplied to the first input terminal of the code amount selector, is output to the output terminal of the code amount selector, and the estimated code amount is used to adjust the quantization scale of the quantizer, and wherein, if the determination signal indicates that the amount of data stored in the intermediate buffer is small, the actual code amount from the encoding section, which is supplied to the second input terminal of the code amount selector, is output to the output terminal of the code amount selector, and the actual code amount is used to adjust the quantization scale of the quantizer.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 90.0
- Lexical Diversity: 2.33871
- Patent Class: 375.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14505369', '13244751', '12354647', '11900224', '12199605']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4744873911956037
- 35 USC 102 Novelty (BERT): 0.6102636642921782
- Combined Prediction Score: 0.4880650185052612
- Mean Citation Score: 312.15487799999994
- Max Citation Score: 537.8463
- Similarity Product: 511.5824463189662

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test