Motorola Corporation

Freescale Semiconductor,inc.

Ronald V DeLong

Benjamin R Davis

Kevin M Anderson

Systems and methods are described for a reduced peak EMI bus using variable bit rate spreading. A method for reducing radiated Electro-Magnetic Interference from a wire communication bus transferring data between one or more physically separate modules or units comprises changing a data clock period controlling a rate of data bits on a communications bus. A Distributed Systems Interface communication bus data transmission protocol includes: alternating a data bit-rate between a first bit-rate and a second bit-rate on a bit-by-bit basis; transmitting a bit over the distributed systems interface communication bus according to the alternating data bit-rate; and varying a difference between the first bit-rate and the second bit-rate.

Reduced peak EMI bus using variable bit rate spreading

An air bag deployment system (,) includes a microcontroller (,), an inflator (,), and an inflator sensor (,). The inflator sensor (,) is adjacent to the inflator (,) and monitors the firing of the inflator (,). The inflator sensor (,) monitors the firing of a squib (,) of the inflator (,). The inflator sensor (,) transmits an inflator firing signal to the microcontroller (,) when the squib (,) of the inflator (,) is activated. In the absence of the inflator firing signal, a backup firing signal is generated by the microcontroller (,) and is transmitted to a backup squib (,).

Air bag deployment system and method for monitoring same

A serial communication device (10) and a method for serially communicating. The serial communication device (10) has a first transceiver (11) and a second transceiver (12) that send data to each other. The first transceiver (11) is capable of providing power or the operating potential to the second transceiver (12). The first transceiver (11) sends command data at a variable data rate to the second transceiver (12) using a voltage signal (30). The second transceiver (12) receives the command data and sends response data to the first transceiver (11) using a current signal (40).

Device and method for serially communicating

A programming system (25, 30) for a programmable semiconductor package (10, 40) has actuators (27, 37) that force contact between leads (13) and a programming contact (21). The contact provides programmable information to a semiconductor die (16) within the package.

Programming system for semiconductor devices and method therefor

Dual monolithic one-shot multivibrators one of which is connected to receive the FM signal and convert it to pulses and the other of which has a reference oscillator connected thereto for conversion to pulses, the output pulses of both multivibrators being low pass filtered with the filtered signals being combined for differential cancellation to provide a detected signal substantially independent of temperature.

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Mesa, AZ, United States of America

Ronald V DeLong