US6078609A
Expired / Lapsed
US
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Radio communication system using frequency hopping, and method of controlling same
Assignee: Canon Inc
•
Filing: 1996-10-18
•
Granted: 2000-06-20
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Expires: 2016-10-18
Abstract
Abstract When radio communication units communicate with each other, communication is performed using a hopping pattern obtained by shifting a hopping pattern that is used in communication between a radio control unit and the radio communication units.
Inventors
- 👤 Hidetada Nago
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:59
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/69; H04B1/713; H04B1/7156; H04B2001/71566
Claims Analysis
Total Claims: 56
Claim 1
Independent Claim
193 words
A radio communication system for performing communication using frequency hopping, comprising: a radio control unit, and a plurality of radio communication units each radio communication unit being controlled wirelessly by said radio control unit; said radio control unit including: first storage means for storing a predetermined hopping pattern; and transmitting means for transmitting wirelessly information, which is for generating another hopping pattern from the predetermined hopping pattern, to a radio communication unit; and each said radio communication unit including: second storage means for storing the predetermined hopping pattern; receiving means for receiving said information transmitted wirelessly by said transmitting means; and communication means for generating another hopping pattern by causing the predetermined hopping pattern to be shifted, based upon said information received by said receiving means, and for communicating with another said radio communication unit by using the other hopping pattern in a case where communication is performed within a area controlled wirelessly by said radio control unit, wherein said transmitting means transmits information, which differs for every hopping pattern to be used in a case where a plurality of hopping patterns are used within the area controlled by said radio control unit.
Claim 2
Dependent Claim
193 words
A radio communication system for performing communication using frequency hopping, comprising: a radio control unit, and a plurality of radio communication units each radio communication unit being controlled wirelessly by said radio control unit; said radio control unit including: first storage means for storing a predetermined hopping pattern; and transmitting means for transmitting wirelessly information, which is for generating another hopping pattern from the predetermined hopping pattern, to a radio communication unit; and each said radio communication unit including: second storage means for storing the predetermined hopping pattern; receiving means for receiving said information transmitted wirelessly by said transmitting means; and communication means for generating another hopping pattern by causing the predetermined hopping pattern to be shifted, based upon said information received by said receiving means, and for communicating with another said radio communication unit by using the other hopping pattern in a case where communication is performed within a area controlled wirelessly by said radio control unit, wherein said transmitting means transmits information, which differs for every hopping pattern to be used in a case where a plurality of hopping patterns are used within the area controlled by said radio control unit.
Claim 3
Dependent Claim
29 words
The system according to claim 1, wherein said radio communication unit performs communication using said communication means when a first radio communication unit communicates with a second communication unit.
Claim 4
Dependent Claim
23 words
The system according to claim 1, wherein said radio control unit and said radio communication unit perform communication using the predetermined hopping pattern.
Claim 5
Dependent Claim
35 words
The system according to claim 1, wherein the predetermined hopping pattern is composed of a time element and a frequency element and is stored in said first storage means and in said second storage means.
Claim 6
Dependent Claim
30 words
The system according to claim 1, wherein the information transmitted by said transmitting means is information indicating how much the predetermined hopping pattern is shifted in time before being used.
Claim 7
Dependent Claim
45 words
The system according to claim 1, wherein said radio control unit has decision means for deciding said information on the basis of status of communication within said system, and said transmitting means transmits the information decided by said decision means to said radio communication unit.
Claim 8
Dependent Claim
42 words
The system according to claim 1, wherein said system has a plurality of said radio communication units, and said information is information such that the same frequency will not be used at the same time in hopping patterns employed in all communications.
Claim 9
Dependent Claim
20 words
The system according to claim 1, wherein said predetermined hopping pattern is stored in said first storage means in advance.
Claim 10
Dependent Claim
26 words
The system according to claim 1, wherein said predetermined hopping pattern is decided at start-up of system power and is stored in said first storage means.
Claim 11
Dependent Claim
129 words
A radio communication apparatus, which is capable of controlling wirelessly a plurality of radio communication units, for performing communication using frequency hopping, comprising: storage means for storing a predetermined hopping pattern; and transmitting means for transmitting wirelessly, to a radio communication unit controlled wirelessly, information which is for generating another hopping pattern for communicating between first and second radio communication units by causing the predetermined hopping pattern to be shifted in a case where communication between the first and second radio communication unites is performed within an area controlled wirelessly by said radio communication apparatus, wherein said transmitting means transmits information, which differs for every hopping pattern to be used in case where a plurality of hopping patterns are used within the area controlled by said radio communication apparatus.
Claim 12
Dependent Claim
129 words
A radio communication apparatus, which is capable of controlling wirelessly a plurality of radio communication units, for performing communication using frequency hopping, comprising: storage means for storing a predetermined hopping pattern; and transmitting means for transmitting wirelessly, to a radio communication unit controlled wirelessly, information which is for generating another hopping pattern for communicating between first and second radio communication units by causing the predetermined hopping pattern to be shifted in a case where communication between the first and second radio communication unites is performed within an area controlled wirelessly by said radio communication apparatus, wherein said transmitting means transmits information, which differs for every hopping pattern to be used in case where a plurality of hopping patterns are used within the area controlled by said radio communication apparatus.
Claim 13
Dependent Claim
27 words
The apparatus according to claim 10, wherein the information transmitted by said transmitting means is used for communicating directly between the first and second radio communication units.
Claim 14
Dependent Claim
34 words
The apparatus according to claim 10, wherein the predetermined hopping pattern is composed of a time element and a frequency element and is stored in said first storage means and in said storage means.
Claim 15
Dependent Claim
27 words
The apparatus according to claim 10, wherein the information transmitted by said transmitting means is information indicating how much the predetermined hopping pattern is shifted in time.
Claim 16
Dependent Claim
36 words
The apparatus according to claim 10, wherein the information transmitted by said transmitting means is information such that the same frequency will not be used at the same time in hopping patterns employed in other communication.
Claim 17
Dependent Claim
19 words
The apparatus according to claim 10, wherein said predetermined hopping pattern is stored in said storage means in advance.
Claim 18
Dependent Claim
26 words
The apparatus according to claim 10, wherein said predetermined hopping pattern is decided at start-up of system power and is stored in said first storage means.
Claim 19
Dependent Claim
158 words
A radio communication apparatus, which is controlled wirelessly by a radio control unit, for performing communication using frequency hopping, comprising: storage means for storing a predetermined hopping pattern; receiving means for receiving information, which has been transmitted wirelessly by said radio control unit, for causing the predetermined hopping pattern to be shifted; and communication means for generating another hopping pattern for communication with another radio communication apparatus by causing the predetermined hopping pattern to be shifted, based upon the information received by said receiving means, and for communicating with the other radio communication apparatus by using the other hopping pattern in a case where communication with the other radio communication apparatus is performed within an area controlled wirelessly by said radio control unit, wherein said receiving means receives information, which differs for every hopping pattern to be used in a case where a plurality of hopping patterns are used within the area controlled by said radio control unit.
Claim 20
Dependent Claim
158 words
A radio communication apparatus, which is controlled wirelessly by a radio control unit, for performing communication using frequency hopping, comprising: storage means for storing a predetermined hopping pattern; receiving means for receiving information, which has been transmitted wirelessly by said radio control unit, for causing the predetermined hopping pattern to be shifted; and communication means for generating another hopping pattern for communication with another radio communication apparatus by causing the predetermined hopping pattern to be shifted, based upon the information received by said receiving means, and for communicating with the other radio communication apparatus by using the other hopping pattern in a case where communication with the other radio communication apparatus is performed within an area controlled wirelessly by said radio control unit, wherein said receiving means receives information, which differs for every hopping pattern to be used in a case where a plurality of hopping patterns are used within the area controlled by said radio control unit.
Claim 21
Dependent Claim
36 words
The apparatus according to claim 17, wherein said communication means communicates with a first radio communication apparatus that is different from a second radio communication apparatus that has transmitted the information received by said receiving means.
Claim 22
Dependent Claim
28 words
The apparatus according to claim 17, wherein the predetermined hopping pattern is composed of a time element and a frequency element and is stored in said storage means.
Claim 23
Dependent Claim
45 words
The apparatus according to claim 17, wherein the information received by said receiving means is information indicating how much the predetermined hopping pattern is shifted in time; and said communication means performs communication upon shifting said predetermined hopping pattern in time based upon said information.
Claim 24
Dependent Claim
36 words
The apparatus according to claim 17, wherein the information received by said receiving means is information such that the same frequency will not be used at the same time in hopping patterns employed in other communication.
Claim 25
Dependent Claim
19 words
The apparatus according to claim 17, wherein said predetermined hopping pattern is stored in said storage means in advance.
Claim 26
Dependent Claim
25 words
The apparatus according to claim 17, wherein said predetermined hopping pattern is decided at start-up of system power and is stored in said storage means.
Claim 27
Independent Claim
186 words
A method of controlling a radio communication system, which has a radio control unit and a plurality of radio communication units, each radio communication unit being controlled wirelessly by the radio control unit for performing communication using frequency hopping, comprising: a transmitting step of transmitting wirelessly information, which is for generating another hopping pattern from a predetermined hopping pastern that has been stored in memory, from the radio control unit to a radio communication unit; a receiving step of receiving the information transmitted at said transmitting step; and a communication step of generating another hopping pattern by causing the predetermined hopping pattern to be shifted, which has been stored in memory, based upon the information received at said receiving step, and of communicating with another radio communication unit by using the second hopping pattern in a case where communication is performed within an area controlled wirelessly by the radio control unit, wherein said transmitting step transmits information, which differs for every hopping pattern to be used in a case where a plurality of hopping patterns are used within the area controlled by the radio control unit.
Claim 28
Independent Claim
186 words
A method of controlling a radio communication system, which has a radio control unit and a plurality of radio communication units, each radio communication unit being controlled wirelessly by the radio control unit for performing communication using frequency hopping, comprising: a transmitting step of transmitting wirelessly information, which is for generating another hopping pattern from a predetermined hopping pastern that has been stored in memory, from the radio control unit to a radio communication unit; a receiving step of receiving the information transmitted at said transmitting step; and a communication step of generating another hopping pattern by causing the predetermined hopping pattern to be shifted, which has been stored in memory, based upon the information received at said receiving step, and of communicating with another radio communication unit by using the second hopping pattern in a case where communication is performed within an area controlled wirelessly by the radio control unit, wherein said transmitting step transmits information, which differs for every hopping pattern to be used in a case where a plurality of hopping patterns are used within the area controlled by the radio control unit.
Claim 29
Dependent Claim
32 words
The method according to claim 24, wherein said receiving step is implemented when a first radio communication unit communicates with a second radio communication unit without intermediary of said radio control unit.
Claim 30
Dependent Claim
24 words
The method according to claim 24, wherein said predetermined hopping pattern is used when said radio control unit communicates with said radio communication unit.
Claim 31
Dependent Claim
27 words
The method according to claim 24, wherein said predetermined hopping pattern is composed of a time element and a frequency element and is stored in said memory.
Claim 32
Dependent Claim
30 words
The method according to claim 24, wherein the information transmitted at said transmitting step is information indicating how much the predetermined hopping pattern is shifted in time before being used.
Claim 33
Dependent Claim
46 words
The method according to claim 24, further comprising a decision step of deciding by said radio control unit said information on the basis of status of communication within said system; said transmitting step transmitting the information decided at said decision step to said radio communication unit.
Claim 34
Dependent Claim
47 words
The method according to claim 24, wherein said system has a plurality of said radio communication units, and said information transmitted at said transmitting step is information such that the same frequency will not be used at the same time in hopping patterns employed in all communications.
Claim 35
Dependent Claim
30 words
The method according to claim 24, wherein said predetermined hopping pattern is stored in a memory in said radio control unit and in a memory in said radio communication unit.
Claim 36
Dependent Claim
38 words
The method according to claim 24, wherein said predetermined hopping pattern is decided at start-up of system power and is stored in a memory in said radio control unit and in a memory in said radio communication unit.
Claim 37
Independent Claim
106 words
A method of controlling wirelessly a plurality of radio communication units which perform communication using frequency hopping, comprising: a transmitting step of transmitting wirelessly, to another radio communication unit controlled wirelessly, information which is for generating another hopping pattern for communicating between first and second radio communication units by using a predetermined hopping pattern that is shifted, which has been stored in memory in a case where communication units is performed with in an area controlled wirelessly, wherein said transmitting step transmits information, which differs for every hoppaing pattern to be used in a case where a plurality of hopping patterns are used within the area.
Claim 38
Independent Claim
106 words
A method of controlling wirelessly a plurality of radio communication units which perform communication using frequency hopping, comprising: a transmitting step of transmitting wirelessly, to another radio communication unit controlled wirelessly, information which is for generating another hopping pattern for communicating between first and second radio communication units by using a predetermined hopping pattern that is shifted, which has been stored in memory in a case where communication units is performed with in an area controlled wirelessly, wherein said transmitting step transmits information, which differs for every hoppaing pattern to be used in a case where a plurality of hopping patterns are used within the area.
Claim 39
Dependent Claim
27 words
The method according to claim 33, wherein the information transmitted at said transmitting step is used for communicating directly between the first and second radio communication units.
Claim 40
Dependent Claim
27 words
The method according to claim 33, wherein the predetermined hopping pattern is composed of a time element and a frequency element and is stored in said memory.
Claim 41
Dependent Claim
27 words
The method according to claim 33, wherein the information transmitted at said transmitting step is information indicating how much the predetermined hopping pattern is shifted in time.
Claim 42
Dependent Claim
36 words
The method according to claim 33, wherein the information transmitted at said transmitting step is information such that the same frequency will not be used at the same time in hopping patterns employed in other communication.
Claim 43
Dependent Claim
18 words
The method according to claim 33, wherein said predetermined hopping pattern is stored in said memory in advance.
Claim 44
Dependent Claim
22 words
The method according to claim 33, wherein said predetermined hopping pattern is decided at start-up of power and is stored in memory.
Claim 45
Independent Claim
163 words
A method of controlling a radio communication apparatus, which is controlled wirelessly by a radio control unit, for performing communication using frequency hopping, comprising: a receiving step of receiving information, which has been transmitted wirelessly by the radio control unit, for causing a predetermined hopping pattern that is shifted, and which has been stored in memory; and a communication step of generating another hopping pattern for communicating with another radio communication apparatus by causing the predetermined hopping pattern to be shifted, based upon the information received at said receiving step, and of communicating with the other radio communication apparatus by using the second hopping pattern in a case where communication with the other radio communication apparatus is performed within an area controlled wirelessly by the radio control unit, wherein said receiving step receives information, which differs for every hoping pattern to be used in a case where a plurality of hopping patterns are used within the area controlled by the radio control unit.
Claim 46
Independent Claim
163 words
A method of controlling a radio communication apparatus, which is controlled wirelessly by a radio control unit, for performing communication using frequency hopping, comprising: a receiving step of receiving information, which has been transmitted wirelessly by the radio control unit, for causing a predetermined hopping pattern that is shifted, and which has been stored in memory; and a communication step of generating another hopping pattern for communicating with another radio communication apparatus by causing the predetermined hopping pattern to be shifted, based upon the information received at said receiving step, and of communicating with the other radio communication apparatus by using the second hopping pattern in a case where communication with the other radio communication apparatus is performed within an area controlled wirelessly by the radio control unit, wherein said receiving step receives information, which differs for every hoping pattern to be used in a case where a plurality of hopping patterns are used within the area controlled by the radio control unit.
Claim 47
Dependent Claim
40 words
The method according to claim 40, wherein said communication step is a step of communicating with a first radio communication apparatus that is different from a second radio communication apparatus that has transmitted the information received at said receiving step.
Claim 48
Dependent Claim
27 words
The method according to claim 40, wherein the predetermined hopping pattern is composed of a time element and a frequency element and is stored in said memory.
Claim 49
Dependent Claim
49 words
The method according to claim 40, wherein the information received at said receiving step is information indicating how much the predetermined hopping pattern is shifted in time; and said communication step is a step of performing communication upon shifting said predetermined hopping pattern in time based upon said information.
Claim 50
Dependent Claim
36 words
The method according to claim 40, wherein the information received at said receiving step is information such that the same frequency will not be used at the same time in hopping patterns employed in other communication.
Claim 51
Dependent Claim
18 words
The method according to claim 40, wherein said predetermined hopping pattern is stored in said memory in advance.
Claim 52
Dependent Claim
23 words
The method according to claim 40, wherein said predetermined hopping pattern is decided at start-up of power and is stored in said memory.
Claim 53
Dependent Claim
42 words
The system according to claim 2, wherein the first radio communication unit communicates with the second radio communication unit via the radio control unit in a case where the first radio communication unit cannot communicate with the second radio communication unit directly.
Claim 54
Dependent Claim
41 words
The apparatus according to claim 18, wherein the radio communication apparatus communicates with the first radio communication apparatus via the second radio communication apparatus in a case where the radio communication apparatus cannot communicate with the first radio communication apparatus directly.
Claim 55
Dependent Claim
42 words
The method according to claim 25, wherein the first radio communication unit communicates with the second radio communication unit via the radio control unit in a case where the first radio communication unit cannot communicate with the second radio communication unit directly.
Claim 56
Dependent Claim
41 words
The method according to claim 41, wherein the radio communication apparatus communicates with the first radio communication apparatus via the second radio communication apparatus in a case where the radio communication apparatus cannot communicate with the first radio communication apparatus directly.
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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) | 2003-06-20 | 2003-12-20 | 2004-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-06-20 | 2007-12-20 | 2008-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-06-20 | 2011-12-20 | 2012-06-20 | $7700.00 | Window Closed / Lapsed |