PATENT CLAIM ANALYSIS

Application Number: 15747139
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-08
Patent Classification: ["330", "051000"]

Abstract:
An analog multiplexer core circuit ( 120 A) includes a differential pair ( 121 ) that includes two transistors (Q 1,  Q 2 ), a differential pair ( 122 ) that includes two transistors (Q 3,  Q 4 ), a differential pair ( 123 ) that includes two transistors (Q 5,  Q 6 ), and a constant current source ( 124 ) that causes a current (I EE ) to flow. This analog multiplexer core circuit ( 120 A) time-multiplexes two analog signals (Ain 1,  Ain 2 ) and outputs a time-multiplexed analog signal (Aout). Each emitter resistor (R EA 1,  R EA 2,  R EA 3,  R EA 4 ) is connected to a corresponding one of the transistors (Q 1,  Q 2,  Q 3,  Q 4 ). At this time, a relation of “R EA ·I EE ≥the amplitude of an input analog signal” is satisfied. As a result, linearity of response can be ensured by expanding the linear response input range of the differential pairs ( 121, 122 ).

Claim (Index 10):
The analog multiplexer circuit according to  claim 7 , wherein the differential amplifier comprises\n a fourth differential pair that includes a seventh transistor and an eighth transistor, the seventh transistor including a collector connected to the high-potential power supply via a third collector resistor, a base to which the positive-phase signal of the time-multiplexed analog signal is input, and an emitter, and the eighth transistor including a collector connected to the high-potential power supply via a fourth collector resistor, a base to which the negative-phase signal of the time-multiplexed analog signal is input, and an emitter, a third output terminal that is connected to the collector of the eighth transistor, a fourth output terminal that is connected to the collector of the seventh transistor, a second current source configured to cause a current of a current value I EE1  to flow and includes one terminal and the other terminal which is connected to the low-potential power supply, a seventh emitter resistor that is connected between the emitter of the seventh transistor and the one terminal of the second current source, and an eighth emitter resistor that is connected between the emitter of the eighth transistor and the one terminal of the second current source, wherein the second current source is a variable current source, and the control circuit causes, in accordance with the amplitudes of the first analog signal and the second analog signal, the second current source to cause a current to flow so that a resistance value R E  of each of the seventh emitter resistor and the eight emitter resistor satisfies\n R E \u00b7I EE1 \u2265an amplitude of the time-multiplexed analog signal\u2003\u2003(3)

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 2.54321
- Patent Class: 330.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11943074', '14889127', '13527510', '11038415', '13981313']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7706823840122736
- 35 USC 102 Novelty (BERT): 0.4993848406128214
- Combined Prediction Score: 0.7435526296723285
- Mean Citation Score: 223.83871800000003
- Max Citation Score: 254.24689
- Similarity Product: 217.9183610399944

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