US 7,592,838 B2
Method for communicating data and clock signals and corresponding signal, transmitter and receiver
Roberto Lanzo, Catania (Italy); and Marco Martini, Acireale (Italy)
Assigned to STMicroelectronics S.R.L., Agrate Brianza (MI) (Italy)
Filed on Feb. 25, 2008, as Appl. No. 12/36,753.
Claims priority of application No. TO2007A0172 (IT), filed on Mar. 06, 2007.
Prior Publication US 2008/0219358 A1, Sep. 11, 2008
Int. Cl. H03K 19/00 (2006.01)
U.S. Cl. 326—82  [326/59] 11 Claims
OG exemplary drawing
 
1. A method for communicating simultaneously on a two-wire line a clock signal constituted by pulses with given frequency of repetition and a data signal that is able to assume two logic levels, the method comprising:
applying to said two-wire line a bipolar differential pulse signal with frequency of repetition of the pulses equal to the frequency of repetition of the pulses of said clock signal; and
varying the sign of the pulses of the bipolar differential pulse signal applied to said two-wire line according to the logic level of said data signal.