Inoperable network device
First Claim
1. A networking appliance, comprising:
- a sensor to recognize a presence on a network of a relatively low speed device by a relatively high speed device; and
a legacy preamble injector to insert a legacy preamble for transmission at a rate corresponding to said relatively low speed device into a native data frame including data at a rate corresponding to said relatively high speed device, based on an indication that a legacy device is coupled to a native network, said native network being different from a legacy network.
9 Assignments
0 Petitions
Accused Products
Abstract
A networking device includes a legacy preamble injector that inserts a legacy preamble based on an indication that a legacy device is coupled to a common network. The legacy preamble injector inserts the legacy preamble if a legacy device is a target device for communication from a network appliance. Alternately, a device may be adapted to output a payload portion at a native rate, for example, if a legacy device is not a target. A Home Phone Line Network Alliance (HomePNA) system includes a telephone line network and a plurality of devices couple to the telephone line network. The plurality of devices may include at least one V2.x device and at least one V1.x device. The at least one V2.x device is adapted to recognize a presence on the telephone line network of at least one V1.x device, and to modify a transmission frame format based on this recognition.
101 Citations
17 Claims
-
1. A networking appliance, comprising:
-
a sensor to recognize a presence on a network of a relatively low speed device by a relatively high speed device; and
a legacy preamble injector to insert a legacy preamble for transmission at a rate corresponding to said relatively low speed device into a native data frame including data at a rate corresponding to said relatively high speed device, based on an indication that a legacy device is coupled to a native network, said native network being different from a legacy network. - View Dependent Claims (2)
said networking appliance outputs said native data frame with said legacy preamble at a legacy rate and a payload portion at a native rate.
-
-
3. A networking appliance, comprising:
-
a sensor to recognize a presence on a network of a relatively low speed device by a relatively high speed device; and
a legacy preamble injector to insert a legacy preamble for transmission at a rate corresponding to said relatively low speed device into a native data frame including data at a rate corresponding to said relatively high speed device, based on an indication that a legacy device is a target device for communication from a native network appliance, coupled to a native network, said native network being different from a legacy network.
-
-
4. A system, comprising:
-
a telephone line network; and
a plurality of devices coupled by the telephone line network, wherein the plurality of devices includes at least one relatively high speed device and at least one relatively low speed device, and wherein the at least one relatively high speed device recognizes a presence on the telephone line network of the at least one relatively low speed device, and modifies a transmission frame format based on this recognition to include both a relatively low speed portion for transmission at a rate corresponding to said relatively low speed device and a relatively high speed portion for transmission at a rate corresponding to said relatively high speed device, in a same data frame. - View Dependent Claims (5, 6, 7)
the relatively low speed portion is a preamble.
-
-
6. A system as recited in claim 4, wherein:
the relatively high speed portion is a payload portion of the data frame.
-
7. A system as recited in claim 4, wherein:
a preamble portion of the data frame includes a portion at a data rate corresponding to the at least one relatively high speed device and a portion at a data rate corresponding to the at least one relatively low speed device.
-
8. A Home Phone Line Network Alliance (HomePNA) system, comprising:
-
a telephone line network; and
a plurality of devices coupled by the telephone line network, wherein the plurality of devices includes at least one V2.x device and at least one V1.x device, and wherein the at least one V2.x device recognizes a presence on the telephone line network of the at least one V1.x device, and modifies a transmission frame format based on this recognition to include both a V2.x portion for transmission at a rate corresponding to said relatively high speed device and a V1.x portion for transmission at a rate corresponding to said relatively low speed device, in a same data frame. - View Dependent Claims (9, 10, 11)
the V1.x portion is a preamble.
-
-
10. A system as recited in claim 8, wherein:
a payload portion of the data frame is transmitted at a data rate corresponding to the V2.x device.
-
11. A system as recited in claim 8, wherein:
a preamble portion of the data frame includes a portion at a data rate corresponding to the V2.x device and a portion at a data rate corresponding to the V1.x device.
-
12. A V2.x HomePNA networking device, comprising:
-
a sensor to recognize a presence on a network of a V1.x device by a V2.x device; and
a V1.x preamble injector to insert a V1.x preamble for transmission at a relatively low speed rate within a V2.x data frame wherein the portion of the V2.x data frame excluding the preamble is transmitted at a relatively high speed rate, based on an indication from said sensor that a V1.x device is coupled to a V2.x HomePNA network. - View Dependent Claims (13)
the V1.x preamble injector is further adapted to output a payload portion at a V2.x rate if another V2.x device is a target device for communication over the V2.x HomePNA network including a V1.x device.
-
-
14. A method of communicating on a telephone line network by a relatively high speed device, comprising:
-
recognizing a presence on the telephone line network of a relatively low speed device by the relatively high speed device; and
injecting a preamble for transmission at a rate corresponding to the relatively low speed device into a data frame including data at a rate corresponding to the relatively high speed device, for transmission by the relatively high speed device. - View Dependent Claims (15, 16)
transmitting a payload portion of said data frame at a rate corresponding to the relatively high speed device if another relatively high speed device is a target device.
-
-
16. A method as recited in claim 14, wherein:
-
the relatively high speed device is a HomePNA V2.x device; and
the relatively low speed device is a HomePNA V1.x device.
-
-
17. A method of communicating on a telephone line network by a relatively high speed device, comprising:
-
recognizing a presence on the telephone line network of a relatively low speed device by the relatively high speed device;
injecting a preamble for transmission at a rate corresponding to the relatively low speed device into a data frame including data at a rate corresponding to the relatively high speed device, if the relatively low speed device is a target device, for transmission by the relatively high speed device.
-
Specification