Source: http://www.google.com/patents/US7904215?dq=7143430
Timestamp: 2016-08-25 05:36:16
Document Index: 546991195

Matched Legal Cases: ['art 1', 'art 1', 'art 2', 'art 3', 'art 4', 'art 5']

Patent US7904215 - Model train control system - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA system which operates a digitally controlled model railroad transmitting a first command from a first client program to a resident external controlling interface through a first communications transport. A second command is transmitted from a second client program to the resident external controlling...http://www.google.com/patents/US7904215?utm_source=gb-gplus-sharePatent US7904215 - Model train control systemAdvanced Patent SearchPublication numberUS7904215 B2Publication typeGrantApplication numberUS 11/981,302Publication dateMar 8, 2011Priority dateJun 24, 1998Fee statusLapsedAlso published asCA2330931A1, CA2330931C, DE19983318T0, DE19983318T1, US6065406, US6267061, US6676089, US6909945, US7177733, US7209812, US7818102, US7856296, US7890224, US7912595, US8065045, US20040099770, US20050159859, US20060241825, US20070106435, US20070142983, US20080059011, US20080065283, US20080065284, US20080071435, US20080082224, US20110054722, US20110172857, WO1999066999A1Publication number11981302, 981302, US 7904215 B2, US 7904215B2, US-B2-7904215, US7904215 B2, US7904215B2InventorsMatthew A. KatzerOriginal AssigneeKatzer Matthew AExport CitationBiBTeX, EndNote, RefManPatent Citations (64), Non-Patent Citations (365), Classifications (18), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetModel train control system
US 7904215 B2Abstract
(d) said interface receiving said first and second commands;
(a) providing an acknowledgement to said first program in response to receiving said first command by said interface that said first command was successfully validated prior to validating said first command; and
(b) providing an acknowledgement to said client program in response to receiving said second command by said interface that said second command was successfully validated prior to validating said second command.
(a) transmitting a third command from a second program to said interface through a second transport;
12. The method of claim 11 wherein said first transport is at least one of a COM interface and a DCOM interface.
13. The method of claim 11 wherein said first transport and said second transport are DCOM interfaces.
22. The method of claim 10 wherein said interface communicates in an asynchronous manner with said first program while communicating in a synchronous manner with command stations. Description
Validation functionality is included within the external device control logic 114 to accommodate all of the different types of command stations. Referring to FIG. 3, an external command processor 200 receives the validated command from the synchronous command processor 110. The external command processor 200 determines which device the command should be directed to, the particular type of command it is, and builds state information for the command. The state information includes, for example, the address, type, port, variables, and type of commands to be sent out. In other words, the state information includes a command set for a particular device on a particular port device. In addition, a copy of the original command is maintained for verification purposes. The constructed command is forwarded to the command sender 202 which is another queue, and preferably a circular queue. The command sender 202 receives the command and transmits commands within its queue in a repetitive nature until the command is removed from its queue. A command response processor 204 receives all the commands from the command stations and passes the commands to the validation function 206. The validation function 206 compares the received command against potential commands that are in the queue of the command sender 202 that could potentially provide such a result. The validation function 206 determines one of four potential results from the comparison. First, the results could be simply bad data that is discarded. Second, the results could be partially executed commands which are likewise normally discarded. Third, the results could be valid responses but not relevant to any command sent. Such a case could result from the operator manually changing the state of devices on the model railroad or from another external device,
The digital command stations 18 program the digital devices, such as a locomotive and switches, of the railroad layout. For example, a locomotive may include several different registers that control the horn, how the light blinks, speed curves for operation, etc. In many such locomotives there are 106 or more programable values. Unfortunately, it may take 1-10 seconds per byte wide word if a valid register or control variable (generally referred to collectively as registers) and two to four minutes to error out if an invalid register to program such a locomotive or device, either of which may contain a decoder. With a large number of byte wide words in a locomotive its takes considerable time to fully program the locomotive. Further, with a railroad layout including many such locomotives and other programmable devices, it takes a substantial amount of time to completely program all the devices of the model railroad layout. During the programming of the railroad layout, the operator is sitting there not, enjoying the operation of the railroad layout, is frustrated, loses operating enjoyment, and will not desire to use digital programmable devices. In addition, to reprogram the railroad layout the operator must reprogram all of the devices of the entire railroad layout which takes substantial time. Similarly, to determine the state of all the devices of the railroad layout the operator must read the registers of each device likewise taking substantial time. Moreover, to reprogram merely a few bytes of a particular device requires the operator to previously know the state of the registers of the device which is obtainable by reading the registers of the device taking substantial time, thereby still frustrating the operator.
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