An appeals court in Qatar said Monday that it would rule Nov. 30 on an American couple’s conviction in the death of their adopted daughter, apparently brushing aside a State Department request to let them go home even while the case is pending.

The decision blunted some of the optimism expressed by the couple, Matthew and Grace Huang of Los Angeles, and their supporters before the hearing. They had hoped that American pressure might compel the Qatari authorities to lift a travel ban on the Huangs.

“We feel kidnapped and trapped,” Mr. Huang said afterward in a statement. “It feels like there is no end to this.”

Mrs. Huang’s brother, Daniel Chin, who attended the hearing, said, “I just know that pressure was being applied, and the response was exactly contrary to what we had been hoping for.”