Communication system for radio controlled toy vehicle
First Claim
1. An improved communication system for controlling a remotely controlled toy vehicle by transmitting control signal from a remote control to a toy vehicle, wherein the remote control including control switches, an encoder and a transmitter, the toy vehicle including a receiver, a decoder and actuators for controlling the operation of the toy vehicle in accordance with control signals received from the remote control, wherein the improvement comprises:
- the encoder generating a continuous, uninterrupted stream of control signal packets which are continuously transmitted at a constant frequency, with each control signal packet, other than the first packet, immediately following the preceding packet in time, each of the packets including a predetermined number of biphase encoded bits, each biphase bit being of the same predetermined width with a fifty percent duty cycle including two transmit elements with one binary state being defined as both of the transmit elements of a bit being opposite, each packet including a first predetermined number of flag bits, the states of which are the same for all packets, a second predetermined number of data bits, the states of which vary depending upon the positions of the control switches, and at least one checksum bit.
1 Assignment
0 Petitions
Accused Products
Abstract
A communication scheme is employed for transmitting control signals from a remote control to a toy vehicle. The remote control includes control switches, an encoder and a transmitter and the toy vehicle includes a receiver, a decoder and actuators for controlling the operation of the toy vehicle in accordance with received control signals. The encoder generates a continuous stream of control signal packets with each of the packets including a predetermined number of biphase encoded bits. Each biphase encoded bit is of the same predetermined width with a 50% duty cycle, including two transmit elements. For one binary state, both of the transmit elements are the same and for the other binary state both of the transmit elements are opposite. Each packet includes a first predetermined number of flag bits, a second predetermined number of data bits and at least one checksum bit.
46 Citations
12 Claims
-
1. An improved communication system for controlling a remotely controlled toy vehicle by transmitting control signal from a remote control to a toy vehicle, wherein the remote control including control switches, an encoder and a transmitter, the toy vehicle including a receiver, a decoder and actuators for controlling the operation of the toy vehicle in accordance with control signals received from the remote control, wherein the improvement comprises:
the encoder generating a continuous, uninterrupted stream of control signal packets which are continuously transmitted at a constant frequency, with each control signal packet, other than the first packet, immediately following the preceding packet in time, each of the packets including a predetermined number of biphase encoded bits, each biphase bit being of the same predetermined width with a fifty percent duty cycle including two transmit elements with one binary state being defined as both of the transmit elements of a bit being opposite, each packet including a first predetermined number of flag bits, the states of which are the same for all packets, a second predetermined number of data bits, the states of which vary depending upon the positions of the control switches, and at least one checksum bit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
Specification