LOS ANGELES  Michael Jackson’s mother was granted temporary guardianship of his three children by a Los Angeles judge on Monday, and a hearing on permanent custody was scheduled for next week.

Mr. Jackson’s mother, Katherine Jackson, 79, also petitioned to be named administrator of his estate, and a hearing on that matter was set for August.

Shortly afterward, Mr. Jackson’s father, Joe, held a disjointed news conference in front of the family’s San Fernando Valley home, during which he veered among his central topic, his plans for his new record company; his grandchildren, who he said were “happy”; and the private autopsy on his son, which the family ordered after findings of a county autopsy last Friday proved inconclusive pending the results of toxicology tests.

Mr. Jackson said that there would be no funeral until the outcome of the private autopsy, whose results, he said, he expects shortly, and that the family was unprepared to say more about the arrangements.