PATENT CLAIM ANALYSIS

Application Number: 15871035
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["200", "345000"]

Abstract:
A keyswitch uses a combination of springs connected in serial for providing a return force to a keycap of the keyswitch. When the keycap moves toward a base of the keyswitch beyond a transition position, one of the springs stops continuously deforming. It leads to an increment of the elastic coefficient of the combination of springs and an increment of the elastic stored energy by the combination of springs. Therefore, during a pressing on the keycap, the keycap can provide a light force feedback and then a heavy force feedback to a user. Further, the keyswitch can use a switch with a lateral motion, which can reduce influence of a resilient force produced by the switch on the up and down movement of the keycap. The keyswitch also can use an elastic piece disposed beside the keycap, which can provide a tactile feedback to the user.

Claim (Index 1):
A keyswitch, comprising:\n a keycap; a base, disposed under the keycap and comprising a boss extending toward the keycap; and a combination of springs, disposed between the keycap and the base, the combination of springs comprising a first spring and a second spring connected with the first spring in series, so that when the keycap receives a pressing force to move from an initial position toward the base, the keycap transfers the pressing force to the combination of springs, and the pressing force is then transferred to the base through the first spring and the second spring in order, an outer diameter of the boss being less than a coil inner diameter of the second spring, the outer diameter of the boss being larger than a coil inner diameter of the first spring, the second spring being sleeved on the boss and comprising a plurality of elastic coils; wherein when the keycap moves from the initial position toward the base beyond a transition position, the second spring is fully compressed to be solid such that a height of the compressed spring reaches a corresponding solid height, a lower end of the first spring abuts against the boss, the first spring is not fully compressed and remains elastically deformable as the keycap moves toward the base further, and the plurality of elastic coils substantially stack vertically.

Metadata:
- Claim Count in Document: 21.0
- Percentile: 86.0
- Lexical Diversity: 2.22535
- Patent Class: 200.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15422443', '15382728', '15642350', '14709489', '14472382']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7872734430737369
- 35 USC 102 Novelty (BERT): 0.5809814785139599
- Combined Prediction Score: 0.7666442466177592
- Mean Citation Score: 370.87348200000014
- Max Citation Score: 576.45483
- Similarity Product: 535.8403872407342

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