公开(公告)号：US4872004A

公开(公告)日：1989-10-03

申请号：US189231

申请日：1988-05-02

Applicant: Karl R. Bahnick ,  David E. Groe

Inventor： Karl R. Bahnick ,  David E. Groe

IPC: G06F13/14

CPC classification number: G06F13/14

Abstract: The plural source arbitration system relates generally to communications systems for linking peripheral devices to a computer. Specifically, the arbitration system allows an external keyboard and a remote control device to be intercoupled to the keyboard slot of a computer and carry out communications without confusion.

Abstract translation: 多个源仲裁系统一般涉及用于将外围设备连接到计算机的通信系统。 具体来说，仲裁系统允许外部键盘和遥控装置相互配合到计算机的键盘槽，并进行通信而不混淆。

公开(公告)号：US4881183A

公开(公告)日：1989-11-14

申请号：US173419

申请日：1988-03-25

Applicant: David E. Groe

Inventor： David E. Groe

IPC: G01N21/35

CPC classification number: G01N21/3504 ,  G01N2201/1218 ,  G01N2201/12753

Abstract: A computerized emissions tester determines concentrations of HC, CO, and CO2 in exhaust emissions. An IR test bench assembly develops an analog voltage representative of the concentration of a particular gas in a sample gas of known concentration. Data related to calibration pressure, voltage offset and voltage gain are stored in non-volatile memory EEPROM. Algorithms relating voltage and concentration of the particular gases are included in software. The pressure of an exhaust emission is compared with the calibration pressure data in memory and a correction is applied to the tester output. The data relating to the voltage offset and gain factor are also used to compensate the tester output.

Abstract translation: 电脑排放测试仪确定废气排放中HC，CO和CO2的浓度。 IR测试台组件开发代表已知浓度的样品气体中特定气体的浓度的模拟电压。 与校准压力，电压偏移和电压增益相关的数据存储在非易失性存储器EEPROM中。 涉及特定气体的电压和浓度的算法包括在软件中。 将废气排放的压力与存储器中的校准压力数据进行比较，并将校正应用于测试仪输出。 与电压偏移和增益因子相关的数据也用于补偿测试仪输出。