US5761438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring the amount of traffic of a network at a predetermined timing and compressing data in the packet without changing the size of the packet
Assignee: Canon Inc
•
Filing: 1997-09-05
•
Granted: 1998-06-02
•
Expires: 2017-09-05
Abstract
Abstract In a communication method and apparatus, the load of a network is reduced by compressing data or changing the data compression method in accordance with a busy state of the network. A network's busy-state monitoring unit checks the busy state of the network, and data to be transmitted is compressed or the compression method is changed in accordance with the busy state, so that the amount of transmitted data is reduced, and the load of the network is reduced.
Inventors
- 👤 Akitomo Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:21
CPC Classifications
H; H04; H04N; H04N21/00; H04N21/80; H04N21/81; H04N21/8146; H04N21/8153; H04N19/00; H04N19/10; H04N19/102; H04N19/124; H04N19/134; H04N19/146; H04N19/152; H04N19/164; H04N19/169; H04N19/17; H04N19/172; H04N19/176; H04N19/46; H04N19/60; H04N19/61; H04N21/20; H04N21/23; H04N21/234; H04N21/2343; H04N21/234354; H04N21/238; H04N21/2381; H04N21/24; H04N21/2402; H04N21/25; H04N21/266; H04N21/2662
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
100 words
A communication apparatus, connected to a network, for communicating image data in a packet via the network, said apparatus comprising: measuring means for measuring an amount of traffic via the network at a predetermined timing, the traffic being measured in relation to a size of an image represented by the image data; compression means for compressing the image data in the packet to be communicated in accordance with a result of the measurement of said measuring means without changing a size of the packet; and communication means for communicating the image data compressed by said compression means in the packet.
Claim 2
Dependent Claim
100 words
A communication apparatus, connected to a network, for communicating image data in a packet via the network, said apparatus comprising: measuring means for measuring an amount of traffic via the network at a predetermined timing, the traffic being measured in relation to a size of an image represented by the image data; compression means for compressing the image data in the packet to be communicated in accordance with a result of the measurement of said measuring means without changing a size of the packet; and communication means for communicating the image data compressed by said compression means in the packet.
Claim 3
Dependent Claim
32 words
An apparatus according to claim 1, wherein, when the result of measurment of said measuring means is greater than a predetermined value, said compression means compresses the image data to be communicated.
Claim 4
Dependent Claim
36 words
An apparatus according to claim 1, wherein, when the result of measurment of said measuring means is greater than a predetermined value, said compression means changes a compression method of the image data to be communicated.
Claim 5
Dependent Claim
27 words
An apparatus according to claim 2, wherein said communication means communicates the image data by adding information indicating that the communicated image data comprises compressed data thereto.
Claim 6
Dependent Claim
32 words
An apparatus according to claim 3, wherein said communication means communicates the image data by adding information indicating that the communicated image data comprises data compressed by the changed compression method thereto.
Claim 7
Dependent Claim
24 words
An apparatus according to claim 5, wherein said communication means communicates the image data by adding an expansion program for the compressed data thereto.
Claim 8
Dependent Claim
100 words
A communication method for communicating image data in a packet via a network, to which a communication apparatus is connected, said method comprising the steps of: measuring means for measuring an amount of traffic via the network at a predetermined timing, the traffic being measured in relation to a size of an image represented by the image data; compressing the image data in the packet to be communicated in accordance with a result of the measurement in said measuring step without changing a size of the packet; and communicating the image data compressed in said compression step in the packet.
Claim 9
Dependent Claim
100 words
A communication method for communicating image data in a packet via a network, to which a communication apparatus is connected, said method comprising the steps of: measuring means for measuring an amount of traffic via the network at a predetermined timing, the traffic being measured in relation to a size of an image represented by the image data; compressing the image data in the packet to be communicated in accordance with a result of the measurement in said measuring step without changing a size of the packet; and communicating the image data compressed in said compression step in the packet.
Claim 10
Dependent Claim
32 words
A method according to claim 7, wherein, when the result of measurement of said measuring step is greater than a predetermined value, said compression step compresses the image data to be communicated.
Claim 11
Dependent Claim
36 words
A method according to claim 7, wherein, when the result of measurement of said measuring step is greater than a predetermined value, said compression step changes a compression method of the image data to be communicated.
Claim 12
Dependent Claim
27 words
A method according to claim 8, wherein said communication step communicates the image data by adding information indicating that the communicated image data comprises compressed data thereto.
Claim 13
Dependent Claim
32 words
A method according to claim 9, wherein said communication step communicates the image data by adding information indicating that the communicated image data comprises data compressed by the changed compression method thereto.
Claim 14
Dependent Claim
24 words
A method according to claim 11, wherein said communication step communicates the image data by adding an expansion program for the compressed data thereto.
References Cited (Backward Citations)
US4200771A
Cited
US4669113A
Cited
US4679193A
Cited
US4771391A
Cited
US4941144A
Cited
US4841527A
Cited
US4931941A
Cited
US5247517A
Cited
US5253078A
Cited
JPH0477150A
Cited
US5276898A
Cited
US5347524A
Cited
US5412780A
Cited
US5371899A
Cited
US5432871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-06-01 | 2001-12-01 | 2002-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-01 | 2005-12-01 | 2006-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-01 | 2009-12-01 | 2010-06-02 | $7700.00 | Window Closed / Lapsed |