On-vehicle electronic apparatus
First Claim
1. An on-vehicle electronic apparatus comprising:
- a main body unit fixed with respect to a vehicle and having a first clock generation means for generating a clock for synchronization in said main body unit, a first shift register for taking in data and a first controller for controlling transmission and reception of the data at said main body unit; and
an operation and display unit detachably mounted on said main body unit and having a second clock generation means for generating a clock for synchronization in said operation and display unit, a second shift register for taking in data and a second controller for controlling transmission and reception of the data at said operation and display unit,wherein the transmission and reception of the data between said main body unit and said operation and display unit are established through just two transmission lines, one of which is for transmission from the operation and display unit to the main body unit and the other of which is for transmission from the main body unit to the operation and display unit.
1 Assignment
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Accused Products
Abstract
An on-vehicle electronic apparatus is provided with: a main body unit fixed with respect to a vehicle and having a first clock generation device for generating a clock for synchronization in the main body unit, a first shift register for taking in data and a first controller for controlling transmission and reception of the data at the main body unit; and an operation and display unit detachably mounted on the main body unit and having a second clock generation device for generating a clock for synchronization in the operation and display unit, a second shift register for taking in data and a second controller for controlling transmission and reception of the data at the operation and display unit, wherein the transmission and reception of the data between the main body unit and the operation and display unit are established through just two transmission lines, one of which is for transmission from the operation and display unit to the main body unit and the other of which is for transmission from the main body unit to the operation and display unit.
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Citations
11 Claims
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1. An on-vehicle electronic apparatus comprising:
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a main body unit fixed with respect to a vehicle and having a first clock generation means for generating a clock for synchronization in said main body unit, a first shift register for taking in data and a first controller for controlling transmission and reception of the data at said main body unit; and an operation and display unit detachably mounted on said main body unit and having a second clock generation means for generating a clock for synchronization in said operation and display unit, a second shift register for taking in data and a second controller for controlling transmission and reception of the data at said operation and display unit, wherein the transmission and reception of the data between said main body unit and said operation and display unit are established through just two transmission lines, one of which is for transmission from the operation and display unit to the main body unit and the other of which is for transmission from the main body unit to the operation and display unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification