Method and apparatus for publishing market information
First Claim
Patent Images
1. A computer implemented method for transmitting market data relating to a financial instrument to a client device over an electronic network, the method comprising:
- receiving, by a network device, the market data relating to the financial instrument from a financial market center;
storing, by the network device comprising a memory, the received market data in the memory prior to transmission of the received market data to the client device over the electronic network;
determining, by the network device, if the received market data is an update to previously received market data which is stored in the memory and has not yet been transmitted to the client device, wherein if the received market data is determined to be an update to the previously received market data which is stored in the memory and has not yet been transmitted to the client device, replacing the previously received market data stored in the memory with the received market data, and if the received market data is determined not to be an update to the previously received market data which is stored in the memory and has not yet been transmitted to the client device, storing the received market data in the memory; and
transmitting, by the network device via the electronic network, all of the stored received market data to the client device only upon determination that the client device has acknowledged receipt of previously received market data that was previously transmitted to the client device regardless of whether or not the received market data is identical to the previously received market data that was previously transmitted to the client device and acknowledged thereby as having been received, wherein the electronic network utilizes a Transmission Control Protocol (TCP) that provides a feedback signal in a form of a network layer acknowledgment (ACK) which the client device utilizes to acknowledge receipt of the previously received market data stored in the memory that was previously transmitted to the client device.
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Accused Products
Abstract
A method and apparatus for publishing market data for a financial instrument utilizes existing network layer acknowledgement feature to publish market data for the financial instrument to a client device at rates in which the client device is able to process the data. The publishing rate is dynamic, as opposed to being fixed, and is able to adjust “on-the-fly” so as to prevent message queue stagnation.
17 Citations
24 Claims
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1. A computer implemented method for transmitting market data relating to a financial instrument to a client device over an electronic network, the method comprising:
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receiving, by a network device, the market data relating to the financial instrument from a financial market center; storing, by the network device comprising a memory, the received market data in the memory prior to transmission of the received market data to the client device over the electronic network; determining, by the network device, if the received market data is an update to previously received market data which is stored in the memory and has not yet been transmitted to the client device, wherein if the received market data is determined to be an update to the previously received market data which is stored in the memory and has not yet been transmitted to the client device, replacing the previously received market data stored in the memory with the received market data, and if the received market data is determined not to be an update to the previously received market data which is stored in the memory and has not yet been transmitted to the client device, storing the received market data in the memory; and transmitting, by the network device via the electronic network, all of the stored received market data to the client device only upon determination that the client device has acknowledged receipt of previously received market data that was previously transmitted to the client device regardless of whether or not the received market data is identical to the previously received market data that was previously transmitted to the client device and acknowledged thereby as having been received, wherein the electronic network utilizes a Transmission Control Protocol (TCP) that provides a feedback signal in a form of a network layer acknowledgment (ACK) which the client device utilizes to acknowledge receipt of the previously received market data stored in the memory that was previously transmitted to the client device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for transmitting market data relating to a financial instrument to a client device over an electronic network, the system comprising:
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a processor and a first memory coupled therewith; computer program logic stored in the first memory and executable by the processor, wherein the processor is configured to; receive, from a financial market center, the market data relating to the financial instrument; store the received market data in a second memory prior to transmission of the received market data to the client device over the electronic network; determine if the received market data is an update to previously received market data which is stored in the second memory and has not yet been transmitted to the client device, wherein if the received market data is determined to be an update to the previously received market data which is stored in the second memory and has not yet been transmitted to the client device, replace the previously received market data stored in the second memory with the received market data, and if the received market data is determined not to be an update to the previously received market data which is stored in the second memory and has not yet been transmitted to the client device, store the received market data in the second memory; and transmit all of the stored received market data to the client device only upon determination that the client device has acknowledged receipt of previously received market data that was previously transmitted to the client device regardless of whether or not the received market data is identical to the previously received market data that was previously transmitted to the client device and acknowledged thereby as having been received, wherein the electronic network utilizes a Transmission Control Protocol (TCP) that provides a feedback signal in a form of a network layer acknowledgment (ACK) which the client device utilizes to acknowledge receipt of the previously received market data stored in the second memory that was previously transmitted to the client device.
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13. A system for transmitting market data relating to a financial instrument, received from a financial market center, to a client device over an electronic network, the system comprising:
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a processor and an electronic communication link coupled therewith and implemented via the electronic network and linked with the client device, configured to; determine when the client device is ready to receive market data based on receipt of an acknowledgment acknowledging receipt by the client device of previously transmitted market data, and based on determining that the client device is ready to receive market data, provide a feedback signal indicative thereof; and a market data publisher implemented by the processor, coupled with the electronic communication link, configured to; receive, from the financial market center, the market data relating to the financial instrument, store, in a memory comprised by the market data publisher, the received market data prior to transmission of the received market data to the client device over the electronic network, wherein the market data publisher is further operative to determine if the received market data is an update to previously received market data which is stored in the memory and has not yet been transmitted to the client device, wherein if the received market data is determined to be an update to the previously received market data which is stored in the memory and has not yet been transmitted to the client device, replace the previously received market data stored in the memory with the received market data, and if the received market data is determined not to be an update to the previously received market data which is stored in the memory and has not yet been transmitted to the client device, store the received market data in the memory, and transmit all of the stored received market data to the client device only upon determination that the client device has acknowledged receipt of previously received market data stored in the memory that was previously transmitted to the client device regardless of whether or not the received market data is identical to the previously received market data that was previously transmitted to the client device and acknowledged thereby as having been received, wherein the electronic communications link comprises a Transmission Control Protocol (TCP) that provides a feedback signal in a form of a network layer acknowledgment (ACK) which the client device utilizes to acknowledge receipt of the previously received market data stored in the memory that was previously transmitted to the client device. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A computer implemented system for transmitting market data relating to a financial instrument to a client device over an electronic network, the system comprising:
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means for receiving, by a network device, the market data relating to the financial instrument from a financial center; means for storing, by the network device comprising a memory, the received market data prior to transmission of the received market data to the client device over the electronic network; means for determining, by the network device, if the received market data is an update to previously received market data which is stored in the memory and has not yet been transmitted to the client device, wherein if the received market data is determined to be an update to the previously received market data which is stored in the memory and has not yet been transmitted to the client device, replacing the previously received market data stored in the memory with the received market data, and if the received market data is determined not to be an update to the previously received market data which is stored in the memory and has not yet been transmitted to the client device, storing the received market data in the memory; and means for transmitting, by the network device via the electronic network, all of the stored received market data to the client device only upon determination that the client device has acknowledged receipt of previously received market data stored in the memory that was previously transmitted to the client device regardless of whether or not the received market data is identical to the previously received market data that was previously transmitted to the client device and acknowledged thereby as having been received, wherein the electronic network utilizes a Transmission Control Protocol (TCP) that provides a feedback signal in a form of a network layer acknowledgment (ACK) which the client device utilizes to acknowledge receipt of the previously received market data stored in the memory that was previously transmitted to the client device.
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Specification