Claims
- 1. A method for transmitting data, the method comprising the steps of:
(a) selecting a notation system for representing data, with the notation system including digits that include at least three values for each digit; (b) encoding the data in a signal train by varying a parameter of the signal in accordance with the notation system to represent values of the data as expressed in the notation system; (c) encoding in the signal train digits indicating a data type for distinguishing one type of data from another in the signal train; and (d) receiving the signal train and decoding the data encoded therein by sensing variations of level of in said parameter.
- 2. The method of claim 1, further comprising the step of impressing the signal train on a carrier wave, and transmitting the carrier wave with the data in block format that includes code signals, wherein receiving the signal train includes receiving the carrier wave and generating a separated signal therefrom.
- 3. The method of claim 2, wherein the step of impressing the encoded data on a carrier wave, includes repeated transmission of the data in block format, and the step of receiving the signal train includes recording data and comparing subsequently transmitted data with recorded data, and indicating valid data received only if blocks or code signals are recognizable to be the same.
- 4. A method for transmitting data, the method comprising the steps of:
(a) selecting a notation system for representing data, with the notation system including digits that include at least three values for each digit; (b) encoding the data in a signal train by varying a parameter of the signal in accordance with the notation system to represent values of the data as expressed in the notation system; (c) impressing the encoded data on a carrier wave, and repeatedly transmitting the carrier wave with the data in block format that includes code signals; (d) receiving the carrier wave and decoding the data therefrom and recording the decoded data; and (e) comparing subsequently transmitted data with recorded data, and indicating valid data received only if blocks or code signals are recognizable to be the same.
- 5. The method of claim 4, wherein encoding the data includes encoding in the signal train digits indicating a data type for distinguishing one type of data from another in the signal train.
- 6. The method of claim 4, further comprising the step of at least one of reading and writing data using magnetization intensity levels for data recording locations on recording media for indicating the value of a digit of data recorded at each location, wherein the magnetization intensity levels corresponding to at least any three of the group consisting substantially of an erased state, a partially magnetized state, a fully magnetized state and a state including magnetization spins all aligned the same.
- 7. The method of claim 4, further comprising the step of least one of reading and writing data using at least three optical patterns for data recording locations on recording media, the optical patterns being distinguishable from one another based on at least one of size and shape extending substantially along the plane of the recording media.
- 8. The method of claim 7, wherein the step of least one of reading and writing data includes both reading and writing data, with writing performed by subjecting the recording medium to a laser beam and for generating optical patterns thereat.
- 9. The method of claim 8, wherein the recording media comprises a material amorphizable and crystallizable, and writing data on the recording media includes subjecting the recording media at recording locations for recording data to a laser beam at a first power level and crystallizing the recording media at recording locations; and subjecting the recording media at recording locations to a laser beam at a second power level and amorphizing the recording media thereat prior to rewriting data at that recording location.
- 10. A method for using multi-valued data elements, the method comprising the steps:
(a) defining a number of selectively variable magnetization intensity levels for data recording locations on recording media, the defined selectively variable magnetization intensity levels corresponding to at least any three of the group consisting substantially of an erased state, a partially magnetized state, a fully magnetized state and a state including magnetization spins all aligned the same; (b) selecting a notation system comprising digits that include a number of different possible values for each digit, with the total number of possible values for each digit corresponding to at least three of the selectively variable magnetization intensity levels defined for each data recording location; (c) uniquely associating each possible value of the digits to a different selectively magnetization intensity level defined for each recording location; and (d) recording the data on the recording media in a format in accordance with the notation system, by adjusting the magnetization intensity level of data recording locations where a digit of the data is recorded on the recording media.
- 11. The method of claim 10, wherein the step of recording data includes the sub-steps of:
(a) encoding the data in a signal train by varying a parameter of the signal in accordance with the notation system to represent values of the data as expressed in the notation system; and (b) permeating data recording locations on the recording medium with a magnetic flux according to the signal train.
- 12. The method of claim 11, wherein encoding the data in a signal train includes voltage pulses comprising at least one of pulse height and width varied in accordance with the notation system to represent values of the data.
- 13. The method of claim 12, wherein the pulses comprise substantially non-rectangular waveforms that vary in at least one of height and width in accordance with the notation system to represent values of the data.
- 14. The method of claim 10, wherein magnetization intensity of a recording location where a digit of data is recorded, corresponds in level to the value of the digit.
- 15. A method for using multi-valued data elements, the method comprising the steps of:
(a) defining at least three optical patterns for data recording locations on recording media for selective formation at the data recording locations, the optical patterns being distinguishable from one another based on at least one of size and shape extending substantially along the plane of the recording media; (b) selecting a notation system comprising digits that include a number of different values for each digit, with the total number of possible values for each digit corresponding to the number of optical patterns defined for each data recording location; (c) uniquely associating each possible value of the digits to a different pattern defined for each recording location; and (d) recording the data on the recording media in a format in accordance with the notation system, by forming optical patterns at recording locations where a digit of the data is recorded on the recording media.
- 16. The method of claim 15, wherein the step of recording data includes the sub-steps of:
(a) encoding the data in a signal train by varying a parameter of the signal in accordance with the notation system to represent values of the data as expressed in the notation system; and (b) subjecting the recording media to a laser beam to form optical patterns at recording locations on the recording media in accordance with data encoded in the signal train.
- 17. The method of claim 16, wherein encoding the data in a signal train includes voltage pulses comprising at least one of pulse height and width varied in accordance with the notation system to represent values of the data.
- 18. The method of claim 17, wherein the pulses comprise substantially non-rectangular waveforms that vary in at least one of height and width in accordance with the notation system to represent values of the data.
- 19. The method of claim 15, wherein the recording media comprises a material that is crystallizable, and the step of recording data on the recording media includes subjecting the recording media at recording locations for recording data, to a laser beam and selectively crystallizing the recording media at recording locations.
- 20. The method of claim 15, further comprising the step of modifying data recorded on the recording media, by altering the optical patterns of recording locations where data has previously been recorded during the step of recording the data on the recording media.
Priority Claims (3)
Number |
Date |
Country |
Kind |
9-110005 |
Mar 1997 |
JP |
|
9-63696 |
Mar 1997 |
JP |
|
9-46844 |
Jan 1997 |
JP |
|
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation-in-part of U.S. application Ser. No. 09/402,006, filed Sep. 27, 1999, which was the National Stage of International Application No. PCT/JP98/01213, filed Mar. 20, 1999, and claims priority from Japanese Application No. 9-110005, filed Mar. 25, 1997; U.S. application Ser. No. 09/367,305, filed Dec. 22, 1999, which was the National Stage of International Application No. PCT/JP98/00468, filed Feb. 4, 1998, and claims priority from Japanese Application No. 9-63696, filed Mar. 12, 1997; and U.S. application Ser. No. 09/355,388, filed Jul. 27, 1999, which was the National Stage of International Application No. PCT/JP98/00126, filed Jan. 16, 1998, and claims priority from Japanese Application No. 9-46844, filed Jan. 27, 1997. Each of the foregoing US, international, and Japanese applications is respectively incorporated herein in entirety by reference.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09402006 |
Sep 1999 |
US |
Child |
10041891 |
Oct 2001 |
US |