US5068838A
Expired / Lapsed
US
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Location acquisition and time adjusting system
Assignee: Klausner Patent Technology
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Filing: 1990-07-18
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Granted: 1991-11-26
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Expires: 2010-07-18
Abstract
Abstract An information retrieval system and method for determining the location of a traveller based upon a comparison between broadcast radiowave frequencies at the location and a table of locations for radio stations which broadcast at those radiowave frequencies. By determining the location, the offset hour for the time zone where the radio station is located may be obtained for correcting displaying the hour on an electronic watch. The location, such as a city, is also displayed so that the traveller is apprised of both the correct time and present location automatically.
Inventors
- 👤 Judah Klausner
- 👤 Robert Hotto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:55
CPC Classifications
G; G04; G04G; G04G21/00; G04G21/04; G04G7/00; G04G9/00; G04G9/0076; G04R; G04R20/00
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
91 words
A portable timekeeping system, comprising: receiving means for receiving broadcast radiowave frequencies; storing means for storing information indicative of sets of radiowave frequencies which are transmitted from predetermined locations so that each set corresponds to a respective one of said predetermined locations; matching means for matching said received broadcast radiowave frequencies from said receiving means with a matching one of said sets of radiowave frequencies; and timekeeping means for updating time indicative of a local time where said received broadcast radiowave frequencies were transmitted based on matching from said matching means.
Claim 2
Dependent Claim
91 words
A portable timekeeping system, comprising: receiving means for receiving broadcast radiowave frequencies; storing means for storing information indicative of sets of radiowave frequencies which are transmitted from predetermined locations so that each set corresponds to a respective one of said predetermined locations; matching means for matching said received broadcast radiowave frequencies from said receiving means with a matching one of said sets of radiowave frequencies; and timekeeping means for updating time indicative of a local time where said received broadcast radiowave frequencies were transmitted based on matching from said matching means.
Claim 3
Dependent Claim
39 words
A system as in claim 1, wherein said storing means also stores information indicative of an offset hour from Greenwich Mean Time for each of said predetermined locations and in correspondence with each of said sets of radiowave frequencies.
Claim 4
Dependent Claim
27 words
A system as in claim 1, wherein said storing means further stores additional information inputted by a user and in correspondence to said sets of radiowave frequencies.
Claim 5
Dependent Claim
42 words
A system as in claim 3, wherein said additional information is indicative of at least one of local phone numbers, local addresses and local messages for the user which relate to said predetermined locations which correspond to said sets of radiowave frequencies.
Claim 6
Dependent Claim
26 words
A system as in claim 1, wherein said storing means further stores additional information indicative of localities and in correspondence to said sets of radiowave frequencies.
Claim 7
Dependent Claim
47 words
A system as in claim 5, wherein said additional information is indicative of at least one of local phone numbers, local addresses, local messages for the user, local travel tips, and local maps which relate to said predetermined locations which correspond to said sets of radiowave frequencies.
Claim 8
Dependent Claim
39 words
A system as in claim 1, wherein said matching means includes means for providing a plurality of target frequencies and for detecting matches between said broadcast radiowave frequencies which are received by said receiving means and said target frequencies.
Claim 9
Dependent Claim
14 words
A system as in claim 1, further comprising means for indicating said predetermined locations.
Claim 10
Dependent Claim
88 words
A system as in claim 1, wherein said matching means includes means for generating target frequencies in digital form, means for converting said digital form into analog form, oscillator means for receiving said analog form and for generating a frequency output voltage in response to receipt of said analog form, means for transmitting a signal strength of a particular frequency received from said receiving means in response to said frequency output voltage, means for detecting a presence of a particular broadcast radiowave frequency based on said signal strength.
Claim 11
Dependent Claim
23 words
A system as in claim 9, wherein said generating means includes means for incrementing frequencies by predetermined amounts to generate the target frequencies.
Claim 12
Dependent Claim
38 words
A system as in claim 1, further including a wrist watch having means for indicating said time from said timekeeping means and housing said storing means, said matching means, said timekeeping means, and means for indicating said time.
Claim 13
Dependent Claim
36 words
A system as in claim 1, further comprising a movable vehicle having means for indicating said time from said timekeeping means and housing said storing means, said matching means, said timekeeping means, and said indicating means.
Claim 14
Dependent Claim
58 words
A system as in claim 1, further comprising: means for calibrating the time of said timekeeping means each hour on the hour, said calibrating means including means for detecting a beep tone which is generated on predetermined radiowave frequencies each hour on the hour and means for resetting said updating means based on detection of said beep tone.
Claim 15
Dependent Claim
45 words
A system as in claim 1, further comprising means for receiving and storing information indicative of a set of broadcast radiowave frequencies received from one of said predetermined locations, and for therewith superseding any previously stored set corresponding to said one of said predetermined locations.
Claim 16
Dependent Claim
45 words
A system as in claim 1, further comprising means for receiving a set of broadcast radiowave frequencies from a new location other than said predetermined locations and storing information indicative of said set in said storing means for later use in identifying the new location.
Claim 17
Independent Claim
82 words
A method for time keeping, comprising the steps of: receiving broadcast radiowave frequencies; storing information indicative of sets of radiowave frequencies which are transmitted from predetermined locations so that each set corresponds to a respective one of said predetermined locations; matching said received broadcast radiowave frequencies from said receiving means with a matching one of said sets of radiowave frequencies; and updating time indicative of a local time where said received broadcast radiowave frequencies were transmitted based on the step of matching.
Claim 18
Independent Claim
82 words
A method for time keeping, comprising the steps of: receiving broadcast radiowave frequencies; storing information indicative of sets of radiowave frequencies which are transmitted from predetermined locations so that each set corresponds to a respective one of said predetermined locations; matching said received broadcast radiowave frequencies from said receiving means with a matching one of said sets of radiowave frequencies; and updating time indicative of a local time where said received broadcast radiowave frequencies were transmitted based on the step of matching.
Claim 19
Dependent Claim
40 words
A method as in claim 16, wherein the step of storing also stores information indicative of an offset hour from Greenwich Mean Time for each of said predetermined locations and in correspondence with each of said sets of radiowave frequencies.
Claim 20
Dependent Claim
29 words
A method as in claim 16, wherein the step of storing further includes storing additional information inputted by a user and in correspondence to said sets of radiowave frequencies.
Claim 21
Dependent Claim
28 words
A method as in claim 16, wherein the step of storing further includes storing additional information indicative of localities and in correspondence to said sets of radiowave frequencies.
Claim 22
Dependent Claim
33 words
A method as in claim 16, wherein the step of matching includes providing a plurality of target frequencies and detecting matches between said broadcast radiowave frequencies which are received and said target frequencies.
Claim 23
Dependent Claim
14 words
A method as in claim 16, further comprising the step of indicating the time.
Claim 24
Dependent Claim
75 words
A method as in claim 16, wherein the step of matching includes generating target frequencies in digital form, converting said digital form into analog form, receiving said analog form and generating a frequency output voltage in response to receipt of said analog form, transmitting a signal strength of a particular frequency received in response to receipt of said frequency output voltage, detecting a presence of a particular broadcast radiowave frequency based on said signal strength.
Claim 25
Dependent Claim
22 words
A method as in claim 22, wherein the step of matching includes incrementing frequency by predetermined amounts to generate the target frequencies.
Claim 26
Dependent Claim
23 words
A method as in claim 16, wherein the steps of receiving, storing and updating take place while moving from one location to another.
Claim 27
Dependent Claim
38 words
A method as in claim 16, further comprising: resetting the time each hour on the hour for the step of updating be detecting a beep tone which is generated each hour on the hour over predetermined radiowave frequencies.
Claim 28
Dependent Claim
27 words
A method as in claim 16, further comprising the step of displaying the identity of the predetermined location from which said received broadcast radiowave frequencies were transmitted.
Claim 29
Dependent Claim
58 words
A method as in claim 16, further comprising the steps of: receiving a set of broadcasting radiowave frequencies from one of said predetermined locations; storing information indicative of the set of received radiowave frequencies from said one of said predetermined locations, thereby superseding any previously stored set of radiowave frequencies corresponding to said one of said predetermined locations.
Claim 30
Dependent Claim
39 words
A method as in claim 16, further comprising the steps of: recieving a set of broadcast radiowave frequencies from a location other than said predetermined locations; storing information indicative of the set of received radiowave frequencies from said locations.
Claim 31
Dependent Claim
92 words
A portable location identification system, comprising: receiving means for receiving broadcast radiowave frequencies; storing means for storing information indicative of sets of radiowave frequencies which are transmitted from predetermined locations so that each set corresponds to a respective one of said predetermined locations; matching means for matching said received broadcast radiowave frequencies from said receiving means with a matching one of said sets of radiowave frequencies; and location identification means for identifying a respective one of said predetermined locations where said received broadcast radiowave frequencies were transmitted based on said matching means.
Claim 32
Dependent Claim
92 words
A portable location identification system, comprising: receiving means for receiving broadcast radiowave frequencies; storing means for storing information indicative of sets of radiowave frequencies which are transmitted from predetermined locations so that each set corresponds to a respective one of said predetermined locations; matching means for matching said received broadcast radiowave frequencies from said receiving means with a matching one of said sets of radiowave frequencies; and location identification means for identifying a respective one of said predetermined locations where said received broadcast radiowave frequencies were transmitted based on said matching means.
Claim 33
Dependent Claim
39 words
A system as in claim 29, wherein said storing means also stores information indicative of an offset hour from Greenwich Mean Time for each of said predetermined locations and in correspondence with each of said sets of radiowave frequencies.
Claim 34
Dependent Claim
27 words
A system as in claim 29, wherein said storing means further stores additional information inputted by a user and in correspondence to said sets of radiowave frequencies.
Claim 35
Dependent Claim
42 words
A system as in claim 31, wherein said additional information is indicative of at least one of local phone numbers, local addresses and local messages for the user which relate to said predetermined locations which correspond to said sets of radiowave frequencies.
Claim 36
Dependent Claim
26 words
A system as in claim 29, wherein said storing means further stores additional information indicative of localities and in correspondence to said sets of radiowave frequencies.
Claim 37
Dependent Claim
47 words
A system as in claim 33, wherein said additional information is indicative of at least one of local phone numbers, local addresses, local messages for the user, local travel tips and local maps which relate to said predetermined locations which correspond to said sets of radiowave frequencies.
Claim 38
Dependent Claim
39 words
A system as in claim 29, wherein said matching means includes means for providing a plurality of target frequencies and for detecting matches between said broadcast radiowave frequencies which are received by said receiving means and said target frequencies.
Claim 39
Dependent Claim
18 words
A system as in claim 29, further comprising means for indicating a local time for said identified location.
Claim 40
Dependent Claim
88 words
A system as in claim 29, wherein said matching means includes means for generating target frequencies in digital form, means for converting said digital form into analog form, oscillator means for receiving said analog form and for generating a frequency output voltage in response to receipt of said analog form, means for transmitting a signal strength of a particular frequency received from said receiving means in response to said frequency output voltage, means for detecting a presence of a particular broadcast radiowave frequency based on said signal strength.
Claim 41
Dependent Claim
23 words
A system as in claim 37, wherein said generating means includes means for incrementing frequencies by predetermined amounts to generate the target frequencies.
Claim 42
Dependent Claim
22 words
A system as in claim 29, further including means for housing said location identification means, said storing means, and said matching means.
Claim 43
Dependent Claim
14 words
A system as in claim 29, further comprising means for displaying said predetermined locations.
Claim 44
Dependent Claim
45 words
A system as in claim 29, further comprising means for receiving and storing information indicative of a set of broadcast radiowave frequencies received from one of said predetermined locations, and for therewith superseding any previously stored set corresponding to said one of said predetermined locations.
Claim 45
Dependent Claim
36 words
A system as in claim 29, further comprising means for receiving a set of broadcast radiowave frequencies from a location other than said predetermined locations and storing information indicative of said set in said storing means.
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) | 1994-11-25 | 1995-05-27 | 1995-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-25 | 1999-05-27 | 1999-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-25 | 2003-05-27 | 2003-11-26 | $7700.00 | Window Closed / Lapsed |