US5318370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge with data memory system and method regarding same
Assignee: Brady Worldwide Inc
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Filing: 1992-11-17
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Granted: 1994-06-07
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Expires: 2012-11-17
Abstract
Abstract A thermal printing machine is provided with a releasably attachable tape cassette which holds the tape on which an image is placed. The cassette includes a memory circuit component which includes at least 2 separate memory areas. The first area contains a first value which is read by the printing machine; the second area contains a second value which is placed on the cassette as a result of the first value having an algorithm applied to it. When the cassette is installed in the machine, the machine applies the algorithm to the first value and checks this against the second value. This process is followed in order to see it the cassette contains a compatible tape for that machine.
Inventors
- 👤 Kelly R. Nehowig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:47
CPC Classifications
B; B41; B41J; B41J35/00; B41J35/36; B41J11/00; B41J11/58; B41J17/00; B41J17/36
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
145 words
A printing apparatus comprising: a printing machine having a thermal printing head energized in response to signals from a printing machine circuitry; a tape cassette releasably attachable to said machine and having a tape for receiving an image generated by reason of said energizing of said thermal printing head; a memory circuit component carried on said tape cassette and including at least a first and a second memory address, said first memory address containing a first value, said second memory address containing a second value derived from applying a predetermined algorithm to said first value; said machine circuitry including contact means for connecting said memory circuit component to said machine circuitry; said machine circuitry further including means for reading said first value and applying said algorithm to said first value to generate a test value and then comparing said test value to said second value.
Claim 2
Dependent Claim
145 words
A printing apparatus comprising: a printing machine having a thermal printing head energized in response to signals from a printing machine circuitry; a tape cassette releasably attachable to said machine and having a tape for receiving an image generated by reason of said energizing of said thermal printing head; a memory circuit component carried on said tape cassette and including at least a first and a second memory address, said first memory address containing a first value, said second memory address containing a second value derived from applying a predetermined algorithm to said first value; said machine circuitry including contact means for connecting said memory circuit component to said machine circuitry; said machine circuitry further including means for reading said first value and applying said algorithm to said first value to generate a test value and then comparing said test value to said second value.
Claim 3
Dependent Claim
33 words
An apparatus according to claim 1 wherein said memory circuit component is selected from one of a plurality of said components, said first value of said selected component unique to said selected component.
Claim 4
Dependent Claim
27 words
An apparatus according to claim 2 wherein said first address is a read only memory address and wherein said second address is a random access memory address.
Claim 5
Independent Claim
146 words
A method for enabling a tape cassette to operate with a printing machine wherein said printing machine includes a thermal printing head energized in response to signals from a machine circuitry, said machine circuitry including means for reading a value from a first and second address of a memory circuit component comprising a selected one of a plurality of components each having a unique first value at said first address, said component carried on a tape cassette releasably attached to said printing machine and said machine circuitry further including means for applying an algorithm to said first value to generate a test value and comparing the test value to a value read at said second address, said method comprising the following steps: reading said first value; applying said algorithm to said first value to generate a second value; writing said second value into said second address.
Claim 6
Independent Claim
146 words
A method for enabling a tape cassette to operate with a printing machine wherein said printing machine includes a thermal printing head energized in response to signals from a machine circuitry, said machine circuitry including means for reading a value from a first and second address of a memory circuit component comprising a selected one of a plurality of components each having a unique first value at said first address, said component carried on a tape cassette releasably attached to said printing machine and said machine circuitry further including means for applying an algorithm to said first value to generate a test value and comparing the test value to a value read at said second address, said method comprising the following steps: reading said first value; applying said algorithm to said first value to generate a second value; writing said second value into said second address.
Claim 7
Dependent Claim
180 words
A tape cassette for a printing machine having a thermal head energized in response to signals from a machine circuitry and said machine circuitry including contact means exposed in a predetermined location and electrically connected to said machine circuitry, said machine circuitry including means for reading at least a first and a second value contained in a first and second address of a memory circuit component in contact with said contact means and said machine circuitry further including means for applying an algorithm to said first value to generate a test value and comparing the test value to the second value, said cassette comprising: means for releasably attaching said tape cassette to said machine in a predetermined position; said memory circuit component carried on said cassette and disposed to be in electrical contact with said contact means when said cassette is in said predetermined position; said memory circuit component including at least said first address containing said firs value and said second address containing said second value with said second value derived from applying said algorithm to said first value.
Claim 8
Dependent Claim
180 words
A tape cassette for a printing machine having a thermal head energized in response to signals from a machine circuitry and said machine circuitry including contact means exposed in a predetermined location and electrically connected to said machine circuitry, said machine circuitry including means for reading at least a first and a second value contained in a first and second address of a memory circuit component in contact with said contact means and said machine circuitry further including means for applying an algorithm to said first value to generate a test value and comparing the test value to the second value, said cassette comprising: means for releasably attaching said tape cassette to said machine in a predetermined position; said memory circuit component carried on said cassette and disposed to be in electrical contact with said contact means when said cassette is in said predetermined position; said memory circuit component including at least said first address containing said firs value and said second address containing said second value with said second value derived from applying said algorithm to said first value.
Claim 9
Dependent Claim
33 words
A cassette according to claim 5 wherein said cassette memory circuit component is selected from one of a plurality of said components and where said first value is unique to said selected component.
Claim 10
Dependent Claim
30 words
A cassette according to claim 6 wherein said memory circuit component first address is a read only memory address and wherein said second address is a random access memory address.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-06-06 | 1997-12-06 | 1998-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-06 | 2001-12-06 | 2002-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-06 | 2005-12-06 | 2006-06-07 | $7700.00 | Window Closed / Lapsed |