PATENT CLAIM ANALYSIS

Application Number: 15941967
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["340", "010200"]

Abstract:
A method, algorithm, architecture, circuits, and/or systems for EAS, HF, UHF, and RFID designs suitable for multi-tag read applications using TTF anti-collision schemes are disclosed. In one embodiment, a tag for wirelessly communicating with a reader can include: (i) a memory portion with an identifier, the memory having at least one printed layer; and (ii) a circuit for providing a bit string followed by a predetermined silent period, where the bit string is related to the identifier. The tag can include pre-programmed memory bits (e.g., bits the value of which is programmed by printing), or alternatively, memory bits formed by conventional photolithography, but having connections made using printing technology to form the identifier, for example. A unique identifier for each tag or device used in a system under a given set of operating conditions can allow a reader to distinguish between them based on a length and/or value of a bit string, for example. Embodiments of the present invention can advantageously provide a reliable and simplified approach for multi-tag read capable EAS, HF, UHF, and RFID systems using TTF anti-collision schemes.

Claim (Index 13):
A wireless identification system for a multi-tag read application using a tags-talk-first (TTF) anti-collision scheme, comprising:\n a) a first tag having a first memory portion storing a first plurality of memory bits encoding a first identifier, wherein at least one layer of said first memory portion is printed, said first tag including a first circuit configured to (i) transmit a first bit string to a reader when an electromagnetic field is applied, said first bit string being related to said first identifier, (ii) cause said first tag to remain silent for a first unique period of time following complete transmission of said first bit string, said first unique period of time having a length and/or value that is determined by variations in environmental parameters, physical parameters, and/or electrical performance of components within said first tag, including in said printed layer(s) of the first memory portion, and (iii) retransmit said first bit string after said first unique period of time elapses; b) a second tag having a second memory portion storing a second plurality of memory bits encoding a second identifier, wherein at least one layer of said second memory portion is printed, said second tag including a second circuit configured to (i) transmit a second bit string to a reader when said electromagnetic field is applied, said second bit string being related to said second identifier, (ii) cause said second tag to remain silent for a second unique period of time following complete transmission of said second bit string, said second unique period of time having a length and/or value that is determined by variations in environmental parameters, physical parameters, and/or electrical performance of components within said second tag, including in said printed layer(s) of the second memory portion, and (iii) retransmit said second bit string after said second unique period of time elapses; and c) said reader, configured to receive said first and second bit strings and distinguish between said first and second tags based on said first and second bit strings, wherein each of said first and second circuits comprises:\n i) an antenna configured to receive a radio frequency (RF) signal from said reader; \n ii) a power-up circuit coupled to said antenna, said power-up circuit being configured to provide an enable signal when said RF signal is received by the antenna; and \n iii) control and readout logic configured to perform control and readout functions of the tag, comprising a plurality of thin film transistors (TFTs).

Metadata:
- Claim Count in Document: 9.0
- Percentile: 90.0
- Lexical Diversity: 1.88496
- Patent Class: 340.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14285469', '11595839', '11870775', '12776828', '09428033']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6881556740462463
- 35 USC 102 Novelty (BERT): 0.5203351139185172
- Combined Prediction Score: 0.6713736180334735
- Mean Citation Score: 236.10327
- Max Citation Score: 287.7691700000001
- Similarity Product: 190.73473064343457

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