Variable coding method for realizing chip reuse and communication terminal therefor

Patent metadata

Field	Value
Publication number	US-10320385-B2
Application number	US-201615780242-A
Country	US
Kind code	B2
Filing date	Nov 30, 2016
Priority date	Dec 1, 2015
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

Disclosed is a variable coding method for realizing chip reuse, comprising the following steps: using at least two identical integrated circuit chips, wherein each integrated circuit chip executes different control logic truth tables according to different gating signals; introducing at least one logical control signal as a gating signal; and controlling the logical control signal, so that each integrated circuit chip respectively executes a corresponding control logic truth table. Also disclosed is a communication terminal using the variable coding method for realizing chip reuse. Two or more completely identical integrated circuit chips can be used to realize different logical control functions, thereby simplifying the type of a chip for realizing a system function, and greatly reducing the development costs of an integrated circuit system and the management complexity of a mass production supply chain.

First claim

What is claimed is:

1. A variable coding method for realizing chip reuse, wherein comprising the following steps:
using at least two identical integrated circuit chips, wherein each of the integrated circuit chips executes a different control logic truth table according to different strobe signals;
introducing at least one logic control signal as the strobe signal, when the integrated circuit chip is an RF switch chip, a non-inverting terminal of the logic control signal participates in the control of a high band coding section, and an inverting terminal participates in the control of a low band coding section; and
controlling the logic control signal so as to enable each of the integrated circuit chips to execute the corresponding control logic truth table.

2. The variable coding method of claim 1 , wherein
when the integrated circuit chip is packaged, the logic control signal is connected to a VDD end or GND end.

3. The variable coding method of claim 1 , wherein
when the logic control signal is at a high level, the high band coding section operates normally, and the low band coding section is shielded; and when the logic control signal is at a low level, the high band coding section is shielded, and the low band coding section operates normally.

4. The variable coding method of claim 1 , wherein
the number of the RF switch chips is two, wherein a logic control signal pin of the first RF switch chip for high band RF signals is connected to the VDD end when being packaged; and a logic control signal pin of the second RF switch chip for low band RF signals is connected to the GND end when being packaged.

5. The variable coding method of claim 4 , wherein
an input end of the logic control signal is pulled up to the VDD end through a resistor, so that the logic control signal pin of the first RF switch chip applied to high band RF signals is suspended, and the logic control signal pin of the second RF switch chip is connected to the GND end.

6. The variable coding method of claim 5 , wherein
the resistor is a passive thin film resistor or a transistor in an appropriate bias state.

7. The variable coding method of claim 4 , wherein
an input end of the logic control signal is pulled down to the GND end through a resistor, so that the logic control signal pin of the second RF switch chip applied to low band RF signals is suspended, and the logic control signal pin of the first RF switch chip is connected to the VDD end.

8. The variable coding method of claim 7 , wherein
the resistor is a passive thin film resistor or a transistor in an appropriate bias state.

9. A communication terminal, wherein in the communication terminal, at least two identical integrated circuit chips are used to realize different logic control functions by using the variable coding method of claim 1 .

10. A variable coding method for realizing chip reuse, wherein comprising the following steps:
using at least two identical integrated circuit chips, wherein each of the integrated circuit chips executes a different control logic truth table according to different strobe signals;
introducing at least one logic control signal as the strobe signal, when the integrated circuit chip is an RF switch chip, an inverting terminal of the logic control signal participates in the control of a high band coding section, and a non-inverting terminal participates in the control of a low band coding section; and
controlling the logic control signal so as to enable each of the integrated circuit chips to execute the corresponding control logic truth table.

11. A communication terminal, wherein in the communication terminal, at least two identical integrated circuit chips are used to realize different logic control functions by using the variable coding method of claim 10 .

Assignees

• Vanchip Tianjin Tech Co Ltd

Inventors

• Lin Sheng

Classifications

• H03K19/0002 Primary

  Multistate logic (H03K19/02 takes precedence) · CPC title

• H04B14/00

  Transmission systems not characterised by the medium used for transmission (details thereof H04B1/00) · CPC title

• H03K19/08

  using semiconductor devices (H03K19/173 takes precedence; wherein the semiconductor devices are only diode rectifiers H03K19/12) · CPC title

• H03K19/212

  using bipolar transistors · CPC title

• H03K19/00307

  in bipolar transistor circuits · CPC title