US5300875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Passive (non-contact) recharging of secondary battery cell(s) powering RFID transponder tags
Assignee: Micron Technology Inc
•
Filing: 1992-06-08
•
Granted: 1994-04-05
•
Expires: 2012-06-08
Abstract
Abstract A concept of passively recharging the battery of battery backed electronic circuits and in particular utilizing these methods to recharge an RFID transponder's secondary cell(s). The invention particularly relates to battery backed transponders which contain rechargeable batteries wherein the recharging circuitry of the present invention allows for passive (non-contact) recharging of a battery residing in a transponder unit that may or may not be directly accessible for handling. The passive recharging strategies disclosed include utilizing energy sources such as: 1) a radio frequency (rf) signal generated outside the package; 2) a seismic geophone; 3) seismic piezoelectric accelerometers; 4) photovoltaic cells located outside of the transponder package; 5) infrared p-v cells located inside of the package driven by the heated package; and/or 5) acoustic energy (sonic and ultrasonic) coupled to the recharging circuitry via an acoustic transducer.
Inventors
- 👤 John R. Tuttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:27
CPC Classifications
H; H02; H02J; H02J50/00; H02J50/20; G; G01; G01S; G01S13/00; G01S13/74; G01S13/76; G01S13/767; G01V; G01V1/00; G01V1/16; G01V1/18; G01V1/181; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/0701; G06K19/0702; G06K19/0723; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/2208; H01Q1/2225; H02J50/10; H02J50/15; H02J50/30; H02J7/00; H02J7/34; H02J7/35; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/1607; H04B1/38; H04B1/3827; H04B1/3888; H04M; H04M1/00; H04M1/02; H04M1/0202; H04M1/026; H04M1/0262; G01S13/765; H02J2207/00; H02J2207/40; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/56
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
111 words
A radio frequency (RF) transceiver system comprising: a) communication circuitry having control logic and memory; b) a secondary battery unit for powering said communication circuitry; c) a secondary battery trickle charging unit for charging said secondary battery unit; and d) a power unit for supplying voltage and current to said secondary battery trickle charging unit, said power unit is selected from the group including a radio frequency receiving antenna system, a seismic transducer, a piezoelectric transducer, photovoltaic cells and an acoustic transducer; wherein said communication circuitry, said secondary battery unit, said secondary battery trickle charging unit and said power unit are all combined to form a single radio frequency transceiver package.
Claim 2
Dependent Claim
111 words
A radio frequency (RF) transceiver system comprising: a) communication circuitry having control logic and memory; b) a secondary battery unit for powering said communication circuitry; c) a secondary battery trickle charging unit for charging said secondary battery unit; and d) a power unit for supplying voltage and current to said secondary battery trickle charging unit, said power unit is selected from the group including a radio frequency receiving antenna system, a seismic transducer, a piezoelectric transducer, photovoltaic cells and an acoustic transducer; wherein said communication circuitry, said secondary battery unit, said secondary battery trickle charging unit and said power unit are all combined to form a single radio frequency transceiver package.
Claim 3
Dependent Claim
17 words
The RF transceiver system of claim 1 wherein said secondary battery unit comprises a single battery cell.
Claim 4
Dependent Claim
18 words
The RF transceiver system of claim 1 wherein said secondary battery unit comprises a plurality of battery cells.
Claim 5
Dependent Claim
19 words
The RF transceiver system of claim 1 wherein said photovoltaic cells are located on the outside of the package.
Claim 6
Dependent Claim
22 words
The RF transceiver system of claim 1 wherein said photovoltaic cells comprise infrared photovoltaic cells located on the inside of the package.
Claim 7
Dependent Claim
15 words
The RF transceiver system of claim 1 wherein said acoustic transducer is a sonic transducer.
Claim 8
Dependent Claim
15 words
The RF transceiver system of claim 1 wherein said acoustic transducer is an ultrasonic transducer.
Claim 9
Dependent Claim
22 words
The RF transceiver system of claim 7 wherein said ultrasonic transducer is selected from the group including piezoelectric, electrostatic, and magnetostrictive devices.
Claim 10
Dependent Claim
16 words
The RF transceiver system of claim 1 wherein said power unit is an a.c. power source.
Claim 11
Dependent Claim
16 words
The RF transceiver system of claim 1 wherein said power unit is a d.c. power source.
Claim 12
Dependent Claim
110 words
A radio frequency identification (RFID) device comprising: a) communication circuitry having controlling logic and memory; b) a secondary battery unit for powering said memory; c) a secondary battery trickle charging unit for charging said secondary battery; and d) a power unit for supplying voltage and current to said secondary battery trickle charging unit, said power unit is selected from the group including a radio frequency receiving antenna system, a seismic transducer, a piezoelectric transducer, photovoltaic cells and an acoustic transducer; wherein said communication circuitry, said secondary battery unit, said secondary battery trickle charging unit and said power unit are all combined to form a single radio frequency identification (RFID) package.
Claim 13
Dependent Claim
110 words
A radio frequency identification (RFID) device comprising: a) communication circuitry having controlling logic and memory; b) a secondary battery unit for powering said memory; c) a secondary battery trickle charging unit for charging said secondary battery; and d) a power unit for supplying voltage and current to said secondary battery trickle charging unit, said power unit is selected from the group including a radio frequency receiving antenna system, a seismic transducer, a piezoelectric transducer, photovoltaic cells and an acoustic transducer; wherein said communication circuitry, said secondary battery unit, said secondary battery trickle charging unit and said power unit are all combined to form a single radio frequency identification (RFID) package.
Claim 14
Dependent Claim
16 words
The RFID device of claim 11 wherein said secondary battery unit comprises a single battery cell.
Claim 15
Dependent Claim
17 words
The RFID device of claim 11 wherein said secondary battery unit comprises a plurality of battery cells.
Claim 16
Dependent Claim
19 words
The RFID device of claim 11 wherein said photovoltaic cells are located on the outside of the RFID package.
Claim 17
Dependent Claim
22 words
The RFID device of claim 11 wherein said photovoltaic cells comprise infrared photovoltaic cells located on the inside of the RFID package.
Claim 18
Dependent Claim
14 words
The RFID device of claim 11 wherein said acoustic transducer is a sonic transducer.
Claim 19
Dependent Claim
14 words
The RFID device of claim 11 wherein said acoustic transducer is an ultrasonic transducer.
Claim 20
Dependent Claim
21 words
The RFID device of claim 17 wherein said ultrasonic transducer is selected from the group including piezoelectric, electrostatic, and magnetostrictive devices.
Claim 21
Dependent Claim
15 words
The RFID device of claim 11 wherein said power unit is an a.c. power source.
Claim 22
Dependent Claim
15 words
The RFID device of claim 11 wherein said power unit is a d.c. power source.
Claim 23
Independent Claim
99 words
A method for charging of a secondary battery unit in a radio frequency (RF) transceiver package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by one of the power units selected from the group including a radio frequency receiving antenna system, a seismic transducer, a piezoelectric transducer, photovoltaic cells and an acoustic transducer.
Claim 24
Independent Claim
99 words
A method for charging of a secondary battery unit in a radio frequency (RF) transceiver package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by one of the power units selected from the group including a radio frequency receiving antenna system, a seismic transducer, a piezoelectric transducer, photovoltaic cells and an acoustic transducer.
Claim 25
Independent Claim
90 words
A method for charging of a secondary battery unit in a radio frequency (RF) transceiver package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by infrared photovoltaic cells located on the inside of the package that are driven by heat dissipated by said package.
Claim 26
Independent Claim
90 words
A method for charging of a secondary battery unit in a radio frequency (RF) transceiver package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by infrared photovoltaic cells located on the inside of the package that are driven by heat dissipated by said package.
Claim 27
Independent Claim
81 words
A method for charging of a secondary battery unit in a radio frequency (RF) transceiver package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; `wherein said power is provided by a power unit located on the inside of the package.
Claim 28
Independent Claim
81 words
A method for charging of a secondary battery unit in a radio frequency (RF) transceiver package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; `wherein said power is provided by a power unit located on the inside of the package.
Claim 29
Independent Claim
81 words
A method for charging of a secondary battery unit in a radio frequency (RF) transceiver package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by a power unit located on the outside of the package.
Claim 30
Independent Claim
81 words
A method for charging of a secondary battery unit in a radio frequency (RF) transceiver package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by a power unit located on the outside of the package.
Claim 31
Independent Claim
99 words
A method for charging of a secondary battery unit in a radio frequency identification (RFID) package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by one of the power units selected from the group including a radio frequency receiving antenna system, a seismic transducer, a piezoelectric transducer, photovoltaic cells and an acoustic transducer.
Claim 32
Independent Claim
99 words
A method for charging of a secondary battery unit in a radio frequency identification (RFID) package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by one of the power units selected from the group including a radio frequency receiving antenna system, a seismic transducer, a piezoelectric transducer, photovoltaic cells and an acoustic transducer.
Claim 33
Independent Claim
89 words
A method for charging of a secondary battery unit in a radio frequency identification(RFID) package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by infrared photovoltaic cells located on the inside of the package that are driven by heat dissipated by said package.
Claim 34
Independent Claim
89 words
A method for charging of a secondary battery unit in a radio frequency identification(RFID) package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by infrared photovoltaic cells located on the inside of the package that are driven by heat dissipated by said package.
Claim 35
Independent Claim
81 words
A method for charging of a secondary battery unit in a radio frequency identification (RFID) package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by a power unit located on the inside of the package.
Claim 36
Independent Claim
81 words
A method for charging of a secondary battery unit in a radio frequency identification (RFID) package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by a power unit located on the inside of the package.
Claim 37
Independent Claim
81 words
A method for charging of a secondary battery unit in a radio frequency identification (RFID) package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by a power unit located on the outside of the package.
Claim 38
Independent Claim
81 words
A method for charging of a secondary battery unit in a radio frequency identification (RFID) package comprising the steps of: a) providing power to a secondary battery trickle charging unit by a radio frequency power source; b) conditioning said power to match the input requirements of said secondary battery trickle charging unit; and c) using said conditioned power for trickle charging said secondary battery unit; wherein said power is provided by a power unit located on the outside of the package.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-04-04 | 1997-10-04 | 1998-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-04 | 2001-10-04 | 2002-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-04 | 2005-10-04 | 2006-04-05 | $7700.00 | Window Closed / Lapsed |