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US 11,895,423 B2Granted
Method of producing triggering signals for a control of a multimedia interface
AssigneeSTMicroelectronics (Rousset) SAS
InventorOlivier Ferrand
Life of this patent
Estimating the term…
Abstract
A system includes an electronic module and an integrated circuit outside the electronic module. The integrated circuit is configured to generate a digital timing signal that emulates a first synchronization signal internal to the module and not available outside the module and to generate trigger signals based on the digital timing signal. A controller is configured to independently and autonomously perform control operations of the electronic module at times triggered by the trigger signals.
Claims20
An integrated circuit to be coupled to an electronic circuit, the integrated circuit comprising:
- a timing signal generator comprising:
- a tearing effect signal detector circuit configured to generate a first signal in response to detecting a first synchronization signal internal to the electronic circuit and available outside the electronic circuit,
- a line counter circuit configured to generate, outside the electronic circuit, a second signal emulating a horizontal synchronization signal internal to the electronic circuit and not available outside the electronic circuit, and
- a frame counter circuit configured to generate, outside the electronic circuit, a third signal emulating a vertical synchronization signal internal to the electronic circuit and not available outside the electronic circuit;
- a trigger circuit configured to generate trigger signals for externally controlling the electronic circuit, the trigger circuit comprising a counter configured to count edges of the second signal or the third signal;
- and
- a trigger signal generation circuit configured to generate second trigger signals based on current values of the counter.
4 more elements
A method, comprising:
- generating, by an integrated circuit coupled to an electronic circuit, a first signal in response to detecting a first synchronization signal internal to the electronic circuit and available outside the electronic circuit,
- generating, by the integrated circuit, outside the electronic circuit, a second signal emulating a horizontal synchronization signal internal to the electronic circuit and not available outside the electronic circuit, and
- generating, by the integrated circuit, outside the electronic circuit, a third signal emulating a vertical synchronization signal internal to the electronic circuit and not available outside the electronic circuit;
- generating, by a trigger circuit of the integrated circuit, trigger signals for externally controlling the electronic circuit, the trigger circuit comprising a counter configured to count edges of the second signal or the third signal;
- and
- generating, by the integrated circuit, second trigger signals based on current values of the counter.
3 more elements
A system, comprising:
- an electronic circuit;
- an integrated circuit coupled to the electronic circuit, the integrated circuit comprising a timing signal generator and a trigger circuit, the trigger circuit configured to generate trigger signals for externally controlling the electronic circuit, the timing signal generator comprising:
- a tearing effect signal detector circuit configured to generate a first signal in response to detecting a first synchronization signal internal to the electronic circuit and available outside the electronic circuit,
- a line counter circuit configured to generate, outside the electronic circuit, a second signal emulating a horizontal synchronization signal internal to the electronic circuit and not available outside the electronic circuit, and
- a frame counter circuit configured to generate, outside the electronic circuit, a third signal emulating a vertical synchronization signal internal to the electronic circuit and not available outside the electronic circuit;
- and
- a controller configured to independently and autonomously control operations of the electronic circuit at times triggered by the trigger signals.
4 more elements
Dependencies are inferred from the claim text.